chore: update release-please config, add wait for testpypi package

Author: antoniaelsen

.github/workflows/release.yml

@@ -57,6 +57,9 @@ jobs:
     runs-on: ubuntu-latest
     needs: publish-testpypi
     steps:
+      - name: wait for package to be available
+        run: sleep 30
+
       - name: install test pypi release
         run: |
           # Get version from GitHub ref (removes 'refs/tags/v' prefix)

.release-please-manifest.json

@@ -0,0 +1,3 @@
+{
+  ".": "1.0.1"
+}