ci: update build matrix

Author: inkydragon

.github/workflows/ci-julia-nightly.yml

@@ -2,15 +2,15 @@ name: CI
 on:
   pull_request:
     branches:
-      - master
+      - main
     paths-ignore:
       - 'LICENSE.md'
       - 'README.md'
       - '.github/workflows/TagBot.yml'
   push:
     tags: '*'
     branches:
-      - master
+      - main
     paths-ignore:
       - 'LICENSE.md'
       - 'README.md'
@@ -26,21 +26,29 @@ jobs:
         arch:
           - x64
           - x86
+          - aarch64
         exclusive:
           - '0'
         os:
           - ubuntu-latest
-          - macOS-latest
+          - macOS-latest  # arm
           - windows-latest
         threads:
           - '5'
         version:
-          - '1.5'
-          - '1'
+          - '1.11'
+          # - '1'  # Use this when julia +1 > 1.11
           - 'nightly'
         exclude:
+          # We only need macOS-latest-aarch64
+          - os: ubuntu-latest
+            julia-arch: aarch64
+          - os: windows-latest
+            julia-arch: aarch64
           - os: macOS-latest
-            arch: x86 # 32-bit Julia binaries are not available on macOS
+            julia-arch: x86
+          - os: macOS-latest
+            julia-arch: x64
         include:
           - exclusive: '1'
             threads: '2'