feat: remove changelog commits from semantic-release (#81)

Author: Copilot

.github/workflows/dart.yml

@@ -58,8 +58,6 @@ jobs:
       - uses: actions/setup-node@v4
         with:
           node-version: 20
-      - run: npm install -g "@semantic-release/changelog"
-      - run: npm install -g "@semantic-release/git"
       - run: npm install -g "pub-semantic-release"
 
       # Setup pub.dev credentials for automated publishing

.releaserc.json

@@ -7,19 +7,6 @@
       "@semantic-release/commit-analyzer",
       "@semantic-release/release-notes-generator",
       "pub-semantic-release",
-      [
-        "@semantic-release/changelog",
-        {
-          "changelogFile": "CHANGELOG.md"
-        }
-      ],
-      [
-        "@semantic-release/git",
-        {
-          "assets": ["pubspec.yaml", "CHANGELOG.md"],
-          "message": "chore(release): ${nextRelease.version} [skip ci]\n\n${nextRelease.notes}"
-        }
-      ],
       "@semantic-release/github"
     ]
   }