Split integration-checks workflow into build-macos and build-linux

.github/workflows/build-linux.yml

@@ -0,0 +1,18 @@
+name: build-linux
+
+on:
+  push:
+    branches:
+      - "main"
+
+jobs:
+  linux:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Build
+        run: swift build
+      - name: Test
+        run: swift test

.github/workflows/ci-checks.yml → .github/workflows/build-macos.yml

@@ -1,24 +1,13 @@
-name: integration-checks
+name: build-macos
 
 on:
   push:
     branches:
       - "main"
 
 jobs:
-  linux:
-    runs-on: ubuntu-latest
-
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v4
-      - name: Build
-        run: swift build
-      - name: Test
-        run: swift test
-
   macos:
-    runs-on: macos-12
+    runs-on: macos-latest
 
     steps:
       - name: Checkout