--author tag is not working on git commit so use git config instead

concourse/release-pipeline.yml

@@ -6,6 +6,12 @@ resource_types:
     tag: latest
 ###################################################
 resources:
+- name: sts4-out
+  type: git
+  source:
+    uri: git@github.com:spring-projects/sts4.git
+    branch: {{branch}}
+    private_key: {{rsa_id}}
 - name: sts4
   type: git
   source:
@@ -94,7 +100,7 @@ jobs:
       file: sts4/concourse/tasks/bump-version.yml
       params:
         extension_id: vscode-manifest-yaml
-    - put: sts4
+    - put: sts4-out
       timeout: 5m
       params:
         repository: sts4-out

concourse/tasks/bump-version.sh

@@ -18,8 +18,10 @@ npm version patch
 new_version=`jq -r .version ${sources}/package.json`
 echo "new_version=${new_version}"
 
+git config user.email "kdevolder@pivotal.io"
+git config user.name "Kris De Volder"
+
 git commit \
     -m "Bump version of ${extension_id} to ${new_version}" \
-    --author 'Kris De Volder <kdevolder@pivotal.io>'
 
 git clone $workdir/sts4 $workdir/sts4-out