Run only one build presubmit with gradle (flutter#8398)

This changes to not using the matrix to build two versions, and also use
gradle to build which matches how we did the latest release.

Author: helin24

.github/workflows/presubmit.yaml

@@ -18,17 +18,11 @@ permissions:
 jobs:
   presubmit:
     runs-on: ubuntu-latest
-    strategy:
-      fail-fast: false
-      matrix:
-        version: [2024.3, 2025.1]
     steps:
       - name: checkout
         uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683
-      - name: build ${{ matrix.version }}
+      - name: build
         run: ./tool/github.sh
-        env:
-          IDEA_VERSION: ${{ matrix.version }}
   checker:
     runs-on: ubuntu-latest
     strategy:

.github/workflows/presubmit.yaml.template

@@ -16,17 +16,11 @@ permissions:
 jobs:
   presubmit:
     runs-on: ubuntu-latest
-    strategy:
-      fail-fast: false
-      matrix:
-        version: [@VERSIONS@]
     steps:
       - name: checkout
         uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3
-      - name: build ${{ matrix.version }}
+      - name: build
         run: ./tool/github.sh
-        env:
-          IDEA_VERSION: ${{ matrix.version }}
   checker:
     runs-on: ubuntu-latest
     strategy:

tool/github.sh

@@ -27,8 +27,6 @@ flutter config --no-analytics
 flutter doctor
 export FLUTTER_SDK=`pwd`/../flutter
 
-echo "IDEA_VERSION=$IDEA_VERSION"
-
 echo "java --version"
 java --version
 
@@ -79,6 +77,6 @@ elif [ "VERIFY_BOT" = "$BOT" ] ; then
 
 else
   # Run the build.
-  ./bin/plugin make --channel=stable --only-version=$IDEA_VERSION --no-setup
+  ./gradlew buildPlugin
 
 fi