chore: revert swiftformat (#4878)

Author: shortcuts

.github/actions/setup/action.yml

@@ -202,7 +202,7 @@ runs:
       if: ${{ inputs.language == 'swift' }}
       id: swiftformat-version
       shell: bash
-      run: echo "SWIFTFORMAT_VERSION=0.56.1" >> $GITHUB_OUTPUT
+      run: echo "SWIFTFORMAT_VERSION=0.55.6" >> $GITHUB_OUTPUT
 
     - name: Checkout swiftformat
       if: ${{ inputs.language == 'swift' }}

scripts/docker/Dockerfile.swift

@@ -1,5 +1,5 @@
 ARG SWIFT_VERSION
-ARG SWIFTFORMAT_VERSION=0.56.1
+ARG SWIFTFORMAT_VERSION=0.55.6
 
 FROM ghcr.io/nicklockwood/swiftformat:${SWIFTFORMAT_VERSION} AS swift_format
 FROM swift:${SWIFT_VERSION}-jammy