Bump dart-lang/setup-dart from 0.3 to 1 (#20)

Bumps [dart-lang/setup-dart](https://github.com/dart-lang/setup-dart) from 0.3 to 1.
- [Release notes](https://github.com/dart-lang/setup-dart/releases)
- [Changelog](https://github.com/dart-lang/setup-dart/blob/main/CHANGELOG.md)
- [Commits](https://github.com/dart-lang/setup-dart/compare/v0.3...v1)

---
updated-dependencies:
- dependency-name: dart-lang/setup-dart
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Kevin Moore <kevmoo@users.noreply.github.com>
diff --git a/.github/workflows/test-package.yml b/.github/workflows/test-package.yml
index e8ed405..204c447 100644
--- a/.github/workflows/test-package.yml
+++ b/.github/workflows/test-package.yml
@@ -23,7 +23,7 @@
         sdk: [2.12.0, dev]
     steps:
       - uses: actions/checkout@v2
-      - uses: dart-lang/setup-dart@v0.3
+      - uses: dart-lang/setup-dart@v1
         with:
           sdk: ${{ matrix.sdk }}
       - id: install
@@ -36,7 +36,7 @@
         run: dart analyze --fatal-infos
         if: matrix.sdk == 'dev' && steps.install.outcome == 'success'
       - name: Analyze code
-        run: dart analyze --fatal-infos
+        run: dart analyze
         if: matrix.sdk != 'dev' && steps.install.outcome == 'success'
 
   # Run tests on a matrix consisting of two dimensions:
@@ -53,7 +53,7 @@
         sdk: [2.12.0, dev]
     steps:
       - uses: actions/checkout@v2
-      - uses: dart-lang/setup-dart@v0.3
+      - uses: dart-lang/setup-dart@v1
         with:
           sdk: ${{ matrix.sdk }}
       - id: install