chore(deps): pin sbt/setup-sbt action to 69a46ab (#1916)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/repotests.yml

@@ -171,7 +171,7 @@ jobs:
         run: |
           chmod +x contrib/free_disk_space.sh
           ./contrib/free_disk_space.sh
-      - uses: sbt/[email protected]
+      - uses: sbt/setup-sbt@69a46ab4acd4316aa16e68d91a9249a98d7e78d5 # v1.1.8
       - name: Install bazelisk - linux
         if: matrix.os == 'ubuntu-24.04'
         run: |
@@ -709,7 +709,7 @@ jobs:
         with:
           distribution: 'temurin'
           java-version: '21'
-      - uses: sbt/[email protected]
+      - uses: sbt/setup-sbt@69a46ab4acd4316aa16e68d91a9249a98d7e78d5 # v1.1.8
       - uses: coursier/setup-action@039f736548afa5411c1382f40a5bd9c2d30e0383 # v1
         with:
           apps: scala3 scalac
@@ -919,7 +919,7 @@ jobs:
         with:
           distribution: 'temurin'
           java-version: ${{ matrix.java-version }}
-      - uses: sbt/[email protected]
+      - uses: sbt/setup-sbt@69a46ab4acd4316aa16e68d91a9249a98d7e78d5 # v1.1.8
       - uses: coursier/setup-action@039f736548afa5411c1382f40a5bd9c2d30e0383 # v1
         with:
           apps: scala3 scalac
@@ -935,7 +935,7 @@ jobs:
         run: |
           chmod +x contrib/free_disk_space.sh
           ./contrib/free_disk_space.sh
-      - uses: sbt/[email protected]
+      - uses: sbt/setup-sbt@69a46ab4acd4316aa16e68d91a9249a98d7e78d5 # v1.1.8
       - name: Install bazelisk - linux
         if: matrix.os == 'ubuntu-24.04'
         run: |