fix(ci): use bash for all run steps

.github/workflows/release.yml

@@ -4,6 +4,9 @@ name: Publish Library
 on:
   release:
     types: [published]
+defaults:
+  run:
+    shell: bash
 jobs:
   build:
     # 2019, has our .NET needs, latest does not
@@ -12,7 +15,7 @@ jobs:
     - uses: actions/checkout@v4
     # While this package targets .Net Framework 4.6.2, the dotnet 7 stuff will work.
     - name: Get version
-      run: echo "VERSION=${{ github.event.release.tag_name }}" >> $GITHUB_ENV
+      run: echo "VERSION=${{ github.event.release.tag_name }}" >> "$GITHUB_ENV"
     - name: Read version
       run: |
         echo Version now: ${VERSION}