chore: update Flutter to 3.38.1 and bump Dart SDK versions

- Update Flutter version from 3.32.0 to 3.38.1 in .fvmrc
- Bump Dart SDK minimum version in pubspec.yaml files:
  - Root: 3.2.0 -> 3.8.0
  - cherrypick_annotations: 3.8.0 -> 3.9.0
  - cherrypick/example: 2.12.0 -> 3.2.0
  - examples/postly: 3.8.0 -> 3.9.0
- Apply code formatting fixes in cherrypick_generator
- Update dependencies in pubspec.lock files

pubspec.lock

@@ -37,18 +37,18 @@ packages:
     dependency: transitive
     description:
       name: checked_yaml
-      sha256: feb6bed21949061731a7a75fc5d2aa727cf160b91af9a3e464c5e3a32e28b5ff
+      sha256: "959525d3162f249993882720d52b7e0c833978df229be20702b33d48d91de70f"
       url: "https://pub.dev"
     source: hosted
-    version: "2.0.3"
+    version: "2.0.4"
   cli_launcher:
     dependency: transitive
     description:
       name: cli_launcher
-      sha256: "67d89e0a1c07b103d1253f6b953a43d3f502ee36805c8cfc21196282c9ddf177"
+      sha256: "17d2744fb9a254c49ec8eda582536abe714ea0131533e24389843a4256f82eac"
       url: "https://pub.dev"
     source: hosted
-    version: "0.3.2"
+    version: "0.3.2+1"
   cli_util:
     dependency: transitive
     description:
@@ -57,14 +57,6 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "0.4.2"
-  clock:
-    dependency: transitive
-    description:
-      name: clock
-      sha256: fddb70d9b5277016c77a80201021d40a2247104d9f4aa7bab7157b7e3f05b84b
-      url: "https://pub.dev"
-    source: hosted
-    version: "1.1.2"
   collection:
     dependency: transitive
     description:
@@ -77,10 +69,10 @@ packages:
     dependency: transitive
     description:
       name: conventional_commit
-      sha256: fad254feb6fb8eace2be18855176b0a4b97e0d50e416ff0fe590d5ba83735d34
+      sha256: c40b1b449ce2a63fa2ce852f35e3890b1e182f5951819934c0e4a66254bc0dc3
       url: "https://pub.dev"
     source: hosted
-    version: "0.6.1"
+    version: "0.6.1+1"
   file:
     dependency: transitive
     description:
@@ -109,10 +101,10 @@ packages:
     dependency: transitive
     description:
       name: http
-      sha256: bb2ce4590bc2667c96f318d68cac1b5a7987ec819351d32b1c987239a815e007
+      sha256: "87721a4a50b19c7f1d49001e51409bddc46303966ce89a65af4f4e6004896412"
       url: "https://pub.dev"
     source: hosted
-    version: "1.5.0"
+    version: "1.6.0"
   http_parser:
     dependency: transitive
     description:
@@ -121,14 +113,6 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "4.1.2"
-  intl:
-    dependency: transitive
-    description:
-      name: intl
-      sha256: d6f56758b7d3014a48af9701c085700aac781a92a87a62b1333b46d8879661cf
-      url: "https://pub.dev"
-    source: hosted
-    version: "0.19.0"
   io:
     dependency: transitive
     description:
@@ -141,10 +125,10 @@ packages:
     dependency: transitive
     description:
       name: json_annotation
-      sha256: "1ce844379ca14835a50d2f019a3099f419082cfdd231cd86a142af94dd5c6bb1"
+      sha256: "805fa86df56383000f640384b282ce0cb8431f1a7a2396de92fb66186d8c57df"
       url: "https://pub.dev"
     source: hosted
-    version: "4.9.0"
+    version: "4.10.0"
   lints:
     dependency: "direct dev"
     description:
@@ -157,26 +141,26 @@ packages:
     dependency: "direct dev"
     description:
       name: melos
-      sha256: "3f3ab3f902843d1e5a1b1a4dd39a4aca8ba1056f2d32fd8995210fa2843f646f"
+      sha256: "4280dc46bd5b741887cce1e67e5c1a6aaf3c22310035cf5bd33dceeeda62ed22"
       url: "https://pub.dev"
     source: hosted
-    version: "6.3.2"
+    version: "6.3.3"
   meta:
     dependency: "direct main"
     description:
       name: meta
-      sha256: "23f08335362185a5ea2ad3a4e597f1375e78bce8a040df5c600c8d3552ef2394"
+      sha256: "9f29b9bcc8ee287b1a31e0d01be0eae99a930dbffdaecf04b3f3d82a969f296f"
       url: "https://pub.dev"
     source: hosted
-    version: "1.17.0"
+    version: "1.18.1"
   mustache_template:
     dependency: transitive
     description:
       name: mustache_template
-      sha256: a46e26f91445bfb0b60519be280555b06792460b27b19e2b19ad5b9740df5d1c
+      sha256: "4326d0002ff58c74b9486990ccbdab08157fca3c996fe9e197aff9d61badf307"
       url: "https://pub.dev"
     source: hosted
-    version: "2.0.0"
+    version: "2.0.3"
   path:
     dependency: transitive
     description:
@@ -197,10 +181,10 @@ packages:
     dependency: transitive
     description:
       name: pool
-      sha256: "20fe868b6314b322ea036ba325e6fc0711a22948856475e2c2b6306e8ab39c2a"
+      sha256: "978783255c543aa3586a1b3c21f6e9d720eb315376a915872c61ef8b5c20177d"
       url: "https://pub.dev"
     source: hosted
-    version: "1.5.1"
+    version: "1.5.2"
   process:
     dependency: transitive
     description:
@@ -229,10 +213,10 @@ packages:
     dependency: transitive
     description:
       name: pub_updater
-      sha256: "54e8dc865349059ebe7f163d6acce7c89eb958b8047e6d6e80ce93b13d7c9e60"
+      sha256: "739a0161d73a6974c0675b864fb0cf5147305f7b077b7f03a58fa7a9ab3e7e7d"
       url: "https://pub.dev"
     source: hosted
-    version: "0.4.0"
+    version: "0.5.0"
   pubspec_parse:
     dependency: transitive
     description:
@@ -301,9 +285,9 @@ packages:
     dependency: transitive
     description:
       name: yaml_edit
-      sha256: fb38626579fb345ad00e674e2af3a5c9b0cc4b9bfb8fd7f7ff322c7c9e62aef5
+      sha256: ec709065bb2c911b336853b67f3732dd13e0336bd065cc2f1061d7610ddf45e3
       url: "https://pub.dev"
     source: hosted
-    version: "2.2.2"
+    version: "2.2.3"
 sdks:
-  dart: ">=3.6.0 <4.0.0"
+  dart: ">=3.9.0 <4.0.0"