GitHub: target different integration tests

Author: guggero

.github/workflows/main.yml

@@ -279,11 +279,14 @@ jobs:
       matrix:
         include:
           - name: bbolt
-            args: dbbackend=bbolt
+            args: itest icase=terminal dbbackend=bbolt
           - name: sqlite
-            args: dbbackend=sqlite
+            args: itest icase=terminal dbbackend=sqlite
           - name: postgres
-            args: dbbackend=postgres
+            args: itest icase=terminal dbbackend=postgres
+          - name: custom-channels
+            args: itest-only icase=custom_channels
+            
     steps:
       - name: git checkout
         uses: actions/checkout@v4
@@ -305,7 +308,7 @@ jobs:
         run: yarn
 
       - name: run itest ${{ matrix.name }}
-        run: make itest ${{ matrix.args }}
+        run: make ${{ matrix.args }}
 
       - name: Zip log files on failure
         if: ${{ failure() }}