ci: Add ability to specify git ref (#598)

.github/workflows/e2e.yml

@@ -35,6 +35,8 @@ jobs:
   aqua:
     name: "aqua"
     uses: ./.github/workflows/snapshot.yml
+    with:
+      ref: ${{ github.ref }}
 
   aqua-playground:
     needs: aqua

.github/workflows/snapshot.yml

@@ -7,6 +7,10 @@ on:
         description: "@fluencejs/fluence version"
         type: string
         default: "null"
+      ref:
+        description: "git ref to checkout to"
+        type: string
+        default: "main"
     outputs:
       aqua-version:
         description: "@fluencelabs/aqua version"
@@ -25,6 +29,7 @@ jobs:
         uses: actions/checkout@v3
         with:
           repository: fluencelabs/aqua
+          with: ${{ inputs.ref }}
 
       - name: Generate version
         id: version