Use a more modular approach to tool installation in release workflow

The semver tool is used to identify pre-release tag versions and configure the GitHub release accordingly. Previously,
the download, installation and use of the tool was all done in a single workflow step. Splitting these processes into
three steps makes the identification of the cause of an error easier and also the related logs to facilitate the
investigation.

Author: per1234

.github/workflows/release.yml

@@ -13,6 +13,10 @@ jobs:
   release:
     runs-on: ubuntu-latest
 
+    env:
+      # See: https://github.com/fsaintjacques/semver-tool/releases
+      SEMVER_TOOL_VERSION: 3.2.0
+
     steps:
       - name: Set environment variables
         run: |
@@ -21,6 +25,7 @@ jobs:
           echo "TAG_SHORT_NAME=$TAG_SHORT_NAME" >> "$GITHUB_ENV"
           echo "ARCHIVE_PATH=${{ runner.temp }}/libraries-repository-engine_${TAG_SHORT_NAME}_Linux_64bit.tar.gz" >> "$GITHUB_ENV"
           echo "CHANGELOG_PATH=${{ runner.temp }}/CHANGELOG.md" >> "$GITHUB_ENV"
+          echo "SEMVER_TOOL_PATH=${{ runner.temp }}/semver" >> "$GITHUB_ENV"
 
       - name: Checkout repository
         uses: actions/checkout@v2
@@ -58,20 +63,26 @@ jobs:
           case-insensitive-regex: true
           changelog-file-path: ${{ env.CHANGELOG_PATH }}
 
-      - name: Identify pre-releases
+      - name: Download semver tool
+        id: download-semver-tool
+        uses: carlosperate/download-file-action@v1.0.3
+        with:
+          file-url: https://github.com/fsaintjacques/semver-tool/archive/${{ env.SEMVER_TOOL_VERSION }}.zip
+          location: ${{ runner.temp }}/semver-tool
+
+      - name: Install semver tool
+        run: |
+          unzip \
+            -p \
+            "${{ steps.download-semver-tool.outputs.file-path }}" \
+            semver-tool-${{ env.SEMVER_TOOL_VERSION }}/src/semver > \
+              "${{ env.SEMVER_TOOL_PATH }}"
+          chmod +x "${{ env.SEMVER_TOOL_PATH }}"
+
+      - name: Identify Prerelease
         id: prerelease
-        env:
-          # See: https://github.com/fsaintjacques/semver-tool/releases/latest
-          TOOL_VERSION: 3.2.0
         run: |
-          INSTALL_PATH="${{ runner.temp }}/semver-tool"
-          mkdir -p "$INSTALL_PATH"
-          wget --quiet --directory-prefix="$INSTALL_PATH" https://github.com/fsaintjacques/semver-tool/archive/${{ env.TOOL_VERSION }}.zip
-          unzip -p "${INSTALL_PATH}/${{ env.TOOL_VERSION }}.zip" semver-tool-${{ env.TOOL_VERSION }}/src/semver >"${INSTALL_PATH}/semver"
-          chmod +x "${INSTALL_PATH}/semver"
-          if [[ $("${INSTALL_PATH}/semver" get prerel "${{ env.TAG_SHORT_NAME }}") ]]; then
-            echo "::set-output name=is-pre::true";
-          fi
+          if [[ "$("${{ env.SEMVER_TOOL_PATH }}" get prerel "${GITHUB_REF/refs\/tags\//}")" ]]; then echo "::set-output name=IS_PRE::true"; fi
 
       - name: Create Release
         uses: ncipollo/release-action@v1