chore(actions): split discord-bot image names by environment

Author: risu729

.github/workflows/docker.yml

@@ -3,6 +3,9 @@ name: Build projects-bot
 on:
     push:
 
+env:
+    IMAGE_NAME: ${{ github.ref_name == 'projects-bot' && 'projects-discord-bot' || 'projects-discord-bot-qa' }}
+
 jobs:
     format-lint-check:
         name: "Format & lint check"
@@ -46,8 +49,8 @@ jobs:
                   platforms: linux/amd64
                   file: Dockerfile
                   tags: |
-                      ghcr.io/csesoc/projects-discord-bot:${{ github.sha }}
-                      ghcr.io/csesoc/projects-discord-bot:latest
+                      ghcr.io/csesoc/${{ env.IMAGE_NAME }}:${{ github.sha }}
+                      ghcr.io/csesoc/${{ env.IMAGE_NAME }}:latest
                   labels: ${{ steps.meta.outputs.labels }}
     deploy:
         name: Deploy (CD)
@@ -67,4 +70,4 @@ jobs:
                   repository: deployment
                   ref: develop
                   updates: |
-                      ghcr.io/csesoc/projects-discord-bot=${{ github.sha }}
+                      ghcr.io/csesoc/${{ env.IMAGE_NAME }}=${{ github.sha }}