Enable github queues and remove bors.toml (#2899)

.github/workflows/rust.yml

@@ -7,8 +7,8 @@ on:
   push:
     branches:
       - main
-      - staging # bors
-      - trying # bors
+  merge_group:
+    types: [checks_requested]
 
 jobs:
   coverage:

.github/workflows/test262.yml

@@ -8,6 +8,8 @@ on:
   pull_request:
     branches:
       - main
+  merge_group:
+    types: [checks_requested]
 
 jobs:
   run_test262:

.github/workflows/webassembly.yml

@@ -5,6 +5,8 @@ on:
   push:
     branches:
       - main
+  merge_group:
+    types: [checks_requested]
 
 name: Webassembly demo
 

bors.toml

@@ -1,18 +0,0 @@
-# docs https://bors.tech/documentation/
-status = [
-	"Coverage",
-	"Build and Test (macos-latest)",
-	"Build and Test (windows-latest)",
-	"Misc",
-]
-pr_status = [
-	"Coverage",
-	"Build and Test (macos-latest)",
-	"Build and Test (windows-latest)",
-	"Misc",
-]
-block_labels = [ "blocked" ]
-required_approvals = 2
-delete_merged_branches = true
-use_squash_merge = true
-update_base_for_deletes = true