chore: Also trigger workflow when merging into v2 (#1343)

Currently we can't reliably merge into v2 because checks don't
automatically trigger

.github/workflows/checks.yml

@@ -16,10 +16,10 @@ name: Checks
 
 on:
   push:
-    branches: [main]
+    branches: [main, v2]
   pull_request:
     # The branches below must be a subset of the branches above
-    branches: [main]
+    branches: [main, v2]
 
 concurrency:
   # Pushing new changes to a branch will cancel any in-progress CI runs

.github/workflows/codeql-analysis.yml

@@ -13,10 +13,10 @@ name: "CodeQL"
 
 on:
   push:
-    branches: [main]
+    branches: [main, v2]
   pull_request:
     # The branches below must be a subset of the branches above
-    branches: [main]
+    branches: [main, v2]
 
 # Restrict jobs in this workflow to have no permissions by default; permissions
 # should be granted per job as needed using a dedicated `permissions` block

.github/workflows/osv-scanner-unified-action.yml

@@ -16,11 +16,11 @@ name: OSV-Scanner Scheduled Scan
 
 on:
   pull_request:
-    branches: ["main"]
+    branches: ["main", "v2"]
   schedule:
     - cron: "12 12 * * 1"
   push:
-    branches: ["main"]
+    branches: ["main", "v2"]
 
 # Restrict jobs in this workflow to have no permissions by default; permissions
 # should be granted per job as needed using a dedicated `permissions` block

.github/workflows/scorecards.yml

@@ -12,7 +12,7 @@ on:
   schedule:
     - cron: "32 22 * * 6"
   push:
-    branches: ["main"]
+    branches: ["main", "v2"]
 
 # Restrict jobs in this workflow to have no permissions by default; permissions
 # should be granted per job as needed using a dedicated `permissions` block