Avoid the remaining expression interpolations in CI workflow scripts

.github/workflows/docker.yml

@@ -67,7 +67,7 @@ jobs:
       - name: Compute vault jwt role name
         id: vault-jwt-role
         run: |
-           echo "role_name=github_service_management_$( echo "${{ github.repository }}" | sed -r 's|[/-]|_|g')" | tee -a "$GITHUB_OUTPUT"
+           echo "role_name=github_service_management_$( echo "$GITHUB_REPOSITORY" | sed -r 's|[/-]|_|g')" | tee -a "$GITHUB_OUTPUT"
 
       - name: Get team registry token
         id: import-secrets
@@ -168,7 +168,7 @@ jobs:
       - name: Compute vault jwt role name
         id: vault-jwt-role
         run: |
-           echo "role_name=github_service_management_$( echo "${{ github.repository }}" | sed -r 's|[/-]|_|g')" | tee -a "$GITHUB_OUTPUT"
+           echo "role_name=github_service_management_$( echo "$GITHUB_REPOSITORY" | sed -r 's|[/-]|_|g')" | tee -a "$GITHUB_OUTPUT"
 
       - name: Get team registry token
         id: import-secrets

.github/workflows/latest_deps.yml

@@ -38,7 +38,9 @@ jobs:
       should_run_workflow: ${{ steps.check_condition.outputs.should_run_workflow }}
     steps:
       - id: check_condition
-        run: echo "should_run_workflow=${{ github.repository == 'element-hq/synapse' }}" >> "$GITHUB_OUTPUT"
+        env:
+          SHOULD_RUN_WORKFLOW: ${{ github.repository == 'element-hq/synapse' }}
+        run: echo "should_run_workflow=$SHOULD_RUN_WORKFLOW" >> "$GITHUB_OUTPUT"
 
   mypy:
     needs: check_repo
@@ -95,11 +97,13 @@ jobs:
       - run: sudo apt-get -qq install xmlsec1
       - name: Set up PostgreSQL ${{ matrix.postgres-version }}
         if: ${{ matrix.postgres-version }}
+        env:
+          POSTGRES_VERSION: ${{ matrix.postgres-version }}
         run: |
           docker run -d -p 5432:5432 \
             -e POSTGRES_PASSWORD=postgres \
             -e POSTGRES_INITDB_ARGS="--lc-collate C --lc-ctype C --encoding UTF8" \
-            postgres:${{ matrix.postgres-version }}
+            "postgres:$POSTGRES_VERSION"
       - uses: actions/setup-python@ece7cb06caefa5fff74198d8649806c4678c61a1 # v6.3.0
         with:
           python-version: "3.x"

.github/workflows/tests.yml

@@ -456,13 +456,15 @@ jobs:
         if: ${{ matrix.job.postgres-version }}
         # 1. Mount postgres data files onto a tmpfs in-memory filesystem to reduce overhead of docker's overlayfs layer.
         # 2. Expose the unix socket for postgres. This removes latency of using docker-proxy for connections.
+        env:
+          POSTGRES_VERSION: ${{ matrix.job.postgres-version }}
         run: |
           docker run -d -p 5432:5432 \
             --tmpfs /var/lib/postgres:rw,size=6144m \
             --mount 'type=bind,src=/var/run/postgresql,dst=/var/run/postgresql' \
             -e POSTGRES_PASSWORD=postgres \
             -e POSTGRES_INITDB_ARGS="--lc-collate C --lc-ctype C --encoding UTF8" \
-            postgres:${{ matrix.job.postgres-version }}
+            "postgres:$POSTGRES_VERSION"
 
       - name: Install Rust
         uses: dtolnay/rust-toolchain@e97e2d8cc328f1b50210efc529dca0028893a2d9 # master

.github/workflows/twisted_trunk.yml

@@ -37,7 +37,9 @@ jobs:
       should_run_workflow: ${{ steps.check_condition.outputs.should_run_workflow }}
     steps:
       - id: check_condition
-        run: echo "should_run_workflow=${{ github.repository == 'element-hq/synapse' }}" >> "$GITHUB_OUTPUT"
+        env:
+          SHOULD_RUN_WORKFLOW: ${{ github.repository == 'element-hq/synapse' }}
+        run: echo "should_run_workflow=$SHOULD_RUN_WORKFLOW" >> "$GITHUB_OUTPUT"
 
   mypy:
     needs: check_repo