Enable merge_group events

Signed-off-by: Andy Goldstein <andy.goldstein@redhat.com>

.github/workflows/e2e.yaml

@@ -3,6 +3,7 @@ name: e2e
 on:
   workflow_dispatch:
   pull_request:
+  merge_group:
   push:
     branches:
     - main

.github/workflows/go-apidiff.yaml

@@ -1,5 +1,7 @@
 name: go-apidiff
-on: [ pull_request ]
+on:
+  pull_request:
+  merge_group:
 jobs:
   go-apidiff:
     runs-on: ubuntu-latest

.github/workflows/release.yaml

@@ -10,6 +10,7 @@ on:
   pull_request:
     branches:
     - main
+  merge_group:
 
 jobs:
   goreleaser:

.github/workflows/sanity.yaml

@@ -3,6 +3,7 @@ name: sanity
 on:
   workflow_dispatch:
   pull_request:
+  merge_group:
   push:
     branches:
     - main

.github/workflows/unit-test.yaml

@@ -3,6 +3,7 @@ name: unit-test
 on:
   workflow_dispatch:
   pull_request:
+  merge_group:
   push:
     branches:
     - main