Update GitHub Action to include separate upload steps

Renamed and split the plugin upload steps in the workflow for better clarity and organization. Added specific names for each upload action, differentiating between HI2UC and HIColorer uploads.

.github/workflows/main.yml

@@ -47,10 +47,12 @@ jobs:
         run: source\zip-plugin-files.ps1
 
       # Upload plugins/artifacts
-      - uses: ./.github/plugin-update
+      - name: Upload HI2UC
+      - uses: ./.github/workflows/plugin-upload
         with:
           file-name: HI2UC
 
+      - name: Upload HIColorer
       - uses: ./.github/plugin-update
         with:
           file-name: HIColorer