[release] Check if packages are ready with 'pip index versions'

This commit updates the release workflow. Now it will check if the
package is ready with 'pip index versions' instead of trying to install
the package.

Signed-off-by: Jose Javier Merchante <jjmerchante@bitergia.com>

.github/workflows/release-grimoirelab-component.yml

@@ -259,14 +259,29 @@ jobs:
         shell: bash
         if: steps.wait-for-release.outcome == 'success'
         run: |
-          package="${{ inputs.module_name }}==${{ steps.version.outputs.version }}"
+          package="${{ inputs.module_name }}"
+          version="${{ steps.version.outputs.version }}"
+          # Format version 1.2.3-rc.1 to 1.2.3rc1
+          versionNum=${version%-*}
+          versionRC=${version#$versionNum}
+          versionRC=${versionRC//[-.]/}
+          currentVersion="${versionNum}${versionRC}"
 
-          while true
+          pip install --upgrade pip
+          for i in $(seq 20)
           do
-            pip install $package && break
+            pipVersion=$(pip index versions --pre $package 2>/dev/null | head -n 1 | cut -f2 -d '(' | cut -f1 -d ')')
+            echo "$currentVersion $pipVersion"
+            if [ "$pipVersion" = "$currentVersion" ]
+            then
+              echo "Same version"
+              exit 0
+            fi
+            echo "Wait for PyPI..."
             sleep 10
-            echo "Wait..."
           done
+          echo "Latest version doesn't match after several retries"
+          exit 1
 
       - id: rollback
         name: Rollback last commit and remove tag