Bump up version to v1.21

Author: christianhelle

.github/workflows/release.yml

@@ -7,7 +7,7 @@ on:
       - 'release'
 
 env:
-  VERSION: '1.20.0'
+  VERSION: '1.21.0'
   NUGET_REPO_URL: 'https://api.nuget.org/v3/index.json'
 
 jobs:

.github/workflows/vsix.yml

@@ -17,7 +17,7 @@ on:
     - cron:  '0 8 * * *'
 
 env:
-  VERSION: 1.20.${{ github.run_number }}
+  VERSION: 1.21.${{ github.run_number }}
 
 jobs:
   build: