CI: Use macos-13 instead of macos-latest (#3366)

Our workflows assume macos-latest is intel, but now it's arm64.
Use macos-13, which is documented to be intel, instead.

reference:
https://docs.github.com/en/actions/using-github-hosted-runners/about-github-hosted-runners/about-github-hosted-runners

.github/workflows/release_process.yml

@@ -69,7 +69,7 @@ jobs:
     needs: [create_tag, create_release]
     uses: ./.github/workflows/build_llvm_libraries.yml
     with:
-      os: "macos-latest"
+      os: "macos-13"
       arch: "AArch64 ARM Mips RISCV X86"
 
   #
@@ -100,7 +100,7 @@ jobs:
     with:
       llvm_cache_key: ${{ needs.build_llvm_libraries_on_macos.outputs.cache_key }}
       release: true
-      runner: macos-latest
+      runner: macos-13
       upload_url: ${{ needs.create_release.outputs.upload_url }}
       ver_num: ${{ needs.create_tag.outputs.new_ver }}
 
@@ -132,7 +132,7 @@ jobs:
     with:
       cwd: product-mini/platforms/darwin
       llvm_cache_key: ${{ needs.build_llvm_libraries_on_macos.outputs.cache_key }}
-      runner: macos-latest
+      runner: macos-13
       upload_url: ${{ needs.create_release.outputs.upload_url }}
       ver_num: ${{ needs.create_tag.outputs.new_ver}}
 
@@ -165,7 +165,7 @@ jobs:
     uses: ./.github/workflows/build_wamr_sdk.yml
     with:
       config_file: wamr_config_macos_release.cmake
-      runner: macos-latest
+      runner: macos-13
       upload_url: ${{ needs.create_release.outputs.upload_url }}
       ver_num: ${{ needs.create_tag.outputs.new_ver}}
       wasi_sdk_url: https://github.com/WebAssembly/wasi-sdk/releases/download/wasi-sdk-19/wasi-sdk-19.0-macos.tar.gz
@@ -212,7 +212,7 @@ jobs:
     needs: [create_tag, create_release]
     uses: ./.github/workflows/build_wamr_lldb.yml
     with:
-      runner: macos-latest
+      runner: macos-13
       arch: universal
       upload_url: ${{ needs.create_release.outputs.upload_url }}
       ver_num: ${{ needs.create_tag.outputs.new_ver}}