Fix export cache issue

Resolve #1551 and #1020.
We are never returning the result of solved operations so Buildkit could not
cache the layer.
This commit implements a simple system to forward operations' result to the
main build to cache it.

Signed-off-by: Vasek - Tom C <tom.chauveau@epitech.eu>

.github/workflows/test-integration.yml

@@ -2,7 +2,7 @@ name: "Test Integration"
 
 on:
   push:
-    branches: [main]
+    branches: [ main ]
     paths:
       - "**.sh"
       - "**.bash"
@@ -16,7 +16,7 @@ on:
       - "!docs/**"
 
   pull_request:
-    branches: [main]
+    branches: [ main ]
     paths:
       - "**.sh"
       - "**.bash"
@@ -67,9 +67,6 @@ jobs:
       - name: Test
         env:
           DOCKERHUB_TOKEN: ${{ secrets.DOCKERHUB_TOKEN }}
-        # TODO: https://github.com/dagger/dagger/pull/1341
-        #   DAGGER_CACHE_TO: "type=gha,mode=max,scope=test-integration"
-        #   DAGGER_CACHE_FROM: "type=gha,mode=max,scope=test-integration"
         run: |
           env
-          make core-integration
+          make core-integration