ci: tolerate npm version probe failures

.github/workflows/release.yml

@@ -106,27 +106,27 @@ jobs:
       - name: Check whether this npm version is already published
         id: npm_version
         if: github.event_name == 'push' || inputs.publish == true
-        shell: pwsh
+        shell: bash
         run: |
-          $packageVersion = (node -p "require('./package.json').version").Trim()
-          $publishedVersion = ""
-          $exactVersionPublished = "false"
+          package_version="$(node -p "require('./package.json').version")"
+          published_version=""
+          exact_version_published="false"
 
-          try {
-            $publishedVersion = (npm view "$env:PACKAGE_NAME@$packageVersion" version | Out-String).Trim()
-          } catch {
-            $publishedVersion = ""
-          }
+          if published_version="$(npm view "${PACKAGE_NAME}@${package_version}" version 2>/dev/null)"; then
+            published_version="${published_version//$'\n'/}"
+          else
+            published_version=""
+          fi
 
-          if ($publishedVersion -eq $packageVersion) {
-            $exactVersionPublished = "true"
-            "Version '$packageVersion' is already published to npm. Skipping publish."
+          if [[ "$published_version" == "$package_version" ]]; then
+            exact_version_published="true"
+            echo "Version '$package_version' is already published to npm. Skipping publish."
           } else {
-            "Version '$packageVersion' is not published yet. Proceeding to publish."
-          }
+            echo "Version '$package_version' is not published yet. Proceeding to publish."
+          fi
 
-          "package_version=$packageVersion" >> $env:GITHUB_OUTPUT
-          "exact_version_published=$exactVersionPublished" >> $env:GITHUB_OUTPUT
+          echo "package_version=$package_version" >> "$GITHUB_OUTPUT"
+          echo "exact_version_published=$exact_version_published" >> "$GITHUB_OUTPUT"
 
       - name: Publish to npm
         if: (github.event_name == 'push' || inputs.publish == true) && steps.npm_version.outputs.exact_version_published != 'true'