fixup! fixup! release: add Mac OSX installer build

We also need to quote the Apple App identity (because it contains a
parenthesis).

Signed-off-by: Johannes Schindelin <[email protected]>

Author: dscho

.github/workflows/build-git-installers.yml

@@ -524,7 +524,7 @@ jobs:
           cp -R stage/git-universal-$VERSION/ \
             git/.github/macos-installer/build-artifacts
           make -C git/.github/macos-installer V=1 codesign \
-            APPLE_APP_IDENTITY=${{ steps.signing-secrets.outputs.appsign-id }} || die "Creating signed payload failed"
+            APPLE_APP_IDENTITY='${{ steps.signing-secrets.outputs.appsign-id }}' || die "Creating signed payload failed"
 
           # Build and sign pkg
           make -C git/.github/macos-installer V=1 pkg \