Add m1 to build matrix and release (#3983)

* Add m1 to release process

This will create a pre-compiled binary for m1 macs and adds
a link to review embark studios CI for verification.

* remove test for macos arm

Tests will not succeed for macos arm until GitHub provides a an m1 hosted runner.

Co-authored-by: Bailey Hayes <bhayes@singlestore.com>

.github/workflows/main.yml

@@ -215,6 +215,7 @@ jobs:
       matrix:
         include:
           - os: ubuntu-latest
+          # defaults to x86_64-apple-darwin
           - os: macos-latest
           - os: windows-2019
           - os: windows-2019
@@ -390,6 +391,9 @@ jobs:
           os: ubuntu-latest
         - build: x86_64-macos
           os: macos-latest
+        - build: aarch64-macos
+          os: macos-latest
+          target: aarch64-apple-darwin
         - build: x86_64-windows
           os: windows-latest
         - build: x86_64-mingw

.github/workflows/release-process.yml

@@ -84,6 +84,9 @@ jobs:
           PRs to the \`main\` branch to update [RELEASES.md] and then backport
           these PRs to the [release branch][branch].
 
+          Maintainers should also review that aarch64-apple-darwin builds
+          are passing via [embark's CI](https://buildkite.com/embark-studios/wasmtime-aarch64-apple-darwin).
+
           Another automated PR will be made in roughly 2 weeks time when for
           the actual release itself.
 

ci/build-tarballs.sh

@@ -59,6 +59,10 @@ elif [ "$platform" = "x86_64-macos" ]; then
   install_name_tool -id "@rpath/libwasmtime.dylib" target/release/libwasmtime.dylib
   cp target/release/wasmtime tmp/$bin_pkgname
   cp target/release/libwasmtime.{a,dylib} tmp/$api_pkgname/lib
+elif [ "$platform" = "aarch64-macos" ]; then
+  install_name_tool -id "@rpath/libwasmtime.dylib" target/aarch64-apple-darwin/release/libwasmtime.dylib
+  cp target/aarch64-apple-darwin/release/wasmtime tmp/$bin_pkgname
+  cp target/aarch64-apple-darwin/release/libwasmtime.{a,dylib} tmp/$api_pkgname/lib
 elif [ "$target" = "" ]; then
   cp target/release/wasmtime tmp/$bin_pkgname
   cp target/release/libwasmtime.{a,so} tmp/$api_pkgname/lib