Use flutter test in CI (#80)

This PR fixes CI to allow #77 to be merged into the main branch.

Thank you always for the amazing toolchain, and `native_toolchain_rust`
you're working on also looks amazing :)

.github/workflows/check_and_lint.yml

@@ -10,8 +10,8 @@ jobs:
   Flutter:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@ee0669bd1cc54295c223e0bb666b733df41de1c5 #v2.7.0
-      - uses: dart-lang/setup-dart@b64355ae6ca0b5d484f0106a033dd1388965d06d #1.6.0
+      - uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 # 4.1.0
+      - uses: subosito/flutter-action@44ac965b96f18d999802d4b807e3256d5a3f9fa1 # 2.16.0
       - name: Pub Get
         run: dart pub get --no-precompile
         working-directory: build_tool
@@ -22,5 +22,5 @@ jobs:
         run: dart analyze
         working-directory: build_tool
       - name: Test
-        run: dart test
+        run: flutter test
         working-directory: build_tool

.github/workflows/test_example_plugin_build.yml

@@ -39,7 +39,7 @@ jobs:
             git clone -b advanced https://github.com/irondash/hello_rust_ffi_plugin
             cd hello_rust_ffi_plugin
             git subtree pull --prefix cargokit https://github.com/${{ github.event.pull_request.head.repo.full_name || github.repository }} ${{ steps.extract_branch.outputs.branch }} --squash
-      - uses: subosito/flutter-action@cc97e1648fff6ca5cc647fa67f47e70f7895510b # 2.11.0
+      - uses: subosito/flutter-action@44ac965b96f18d999802d4b807e3256d5a3f9fa1 # 2.16.0
         with:
           channel: "stable"
       - name: Install GTK