Bump bufbuild/buf-setup-action from 1.47.2 to 1.48.0 in /.github/util/initialize (#2470)

* Bump bufbuild/buf-setup-action in /.github/util/initialize

Bumps [bufbuild/buf-setup-action](https://github.com/bufbuild/buf-setup-action) from 1.47.2 to 1.48.0.
- [Release notes](https://github.com/bufbuild/buf-setup-action/releases)
- [Commits](bufbuild/buf-setup-action@v1.47.2...v1.48.0)

---
updated-dependencies:
- dependency-name: bufbuild/buf-setup-action
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

* fix lint warnings

---------

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Carlos (Goodwine) <2022649+Goodwine@users.noreply.github.com>

Author: dependabot[bot]

.github/util/initialize/action.yml

@@ -31,7 +31,7 @@ runs:
     - run: npm install
       shell: ${{ runner.os == 'Windows' && 'powershell' || 'bash' }}
 
-    - uses: bufbuild/buf-setup-action@v1.47.2
+    - uses: bufbuild/buf-setup-action@v1.48.0
       with: {github_token: "${{ inputs.github-token }}"}
 
     # This composite action requires bash, but bash is not available on windows-arm64 runner.

test/double_check_test.dart

@@ -85,8 +85,8 @@ void main() {
             'sass_api', sassPubspec, pkgPubspec.version!));
 
     test("matches SDK version", () {
-      expect(pkgPubspec.environment!["sdk"],
-          equals(sassPubspec.environment!["sdk"]));
+      expect(pkgPubspec.environment["sdk"],
+          equals(sassPubspec.environment["sdk"]));
     });
 
     test("matches dartdoc version", () {