Add sqlite vscode extension to Gitpod configuration (go-gitea#21552)

It allows for quick database inspections in the IDE.


![image](https://user-images.githubusercontent.com/20454870/197355299-222f5027-aba8-4fe2-b1d4-fff93d5ccb3c.png)

Signed-off-by: Yarden Shoham <hrsi88@gmail.com>

.gitpod.yml

@@ -33,6 +33,7 @@ vscode:
     - johnsoncodehk.volar
     - ms-azuretools.vscode-docker
     - zixuanchen.vitest-explorer
+    - alexcvzz.vscode-sqlite
 
 ports:
   - name: Gitea