chore: improve justfiles version recipes

Author: guillevc

extension/justfile

@@ -101,7 +101,7 @@ version VERSION:
     npm pkg set version={{VERSION}}
     bun install
     git add package.json bun.lock
-    git commit -m "chore(extension): bump version to {{VERSION}}"
+    git diff --cached --quiet || git commit -m "chore(extension): bump version to {{VERSION}}"
     git tag ext-v{{VERSION}}
 
 [group('utils')]

justfile

@@ -287,7 +287,7 @@ version VERSION:
 
     # Commit and tag
     git add pyproject.toml packages/*/pyproject.toml uv.lock web/package.json web/bun.lock
-    git commit -m "chore: bump version to {{VERSION}}"
+    git diff --cached --quiet || git commit -m "chore: bump version to {{VERSION}}"
     git tag v{{VERSION}}
 
 [group('utils')]