Regenerate GitHub Actions workflow

Executed command: sbt githubWorkflowGenerate

Author: scala-steward

.github/workflows/ci.yml

@@ -34,6 +34,10 @@ jobs:
     runs-on: ${{ matrix.os }}
     timeout-minutes: 60
     steps:
+      - name: Install sbt
+        if: contains(runner.os, 'macos')
+        run: brew install sbt
+
       - name: Checkout current branch (full)
         uses: actions/checkout@v4
         with:
@@ -111,6 +115,10 @@ jobs:
         java: [temurin@17]
     runs-on: ${{ matrix.os }}
     steps:
+      - name: Install sbt
+        if: contains(runner.os, 'macos')
+        run: brew install sbt
+
       - name: Checkout current branch (full)
         uses: actions/checkout@v4
         with:
@@ -192,6 +200,10 @@ jobs:
         java: [temurin@17]
     runs-on: ${{ matrix.os }}
     steps:
+      - name: Install sbt
+        if: contains(runner.os, 'macos')
+        run: brew install sbt
+
       - name: Checkout current branch (full)
         uses: actions/checkout@v4
         with:
@@ -224,6 +236,10 @@ jobs:
         java: [temurin@17]
     runs-on: ${{ matrix.os }}
     steps:
+      - name: Install sbt
+        if: contains(runner.os, 'macos')
+        run: brew install sbt
+
       - name: Checkout current branch (full)
         uses: actions/checkout@v4
         with: