Update generate release notes to include arm mac packages (#2630)

- also some changes for consistency

bin/generate-release-notes

@@ -9,16 +9,15 @@ Package Manager Installation
 
 Installers
 ----------
-- Debian [64 bit](https://packages.cloudfoundry.org/stable?release=debian64&version=$VERSION&source=github-rel) / [32 bit](https://packages.cloudfoundry.org/stable?release=debian32&version=$VERSION&source=github-rel) (deb) / [arm64](https://packages.cloudfoundry.org/stable?release=debianarm64&version=$VERSION&source=github-rel) (deb)
-- Redhat [64 bit](https://packages.cloudfoundry.org/stable?release=redhat64&version=$VERSION&source=github-rel) / [32 bit](https://packages.cloudfoundry.org/stable?release=redhat32&version=$VERSION&source=github-rel) (rpm) / [aarch64](https://packages.cloudfoundry.org/stable?release=redhataarch64&version=$VERSION&source=github-rel) (rpm)
-- Mac OS X [64 bit](https://packages.cloudfoundry.org/stable?release=macosx64&version=$VERSION&source=github-rel) (pkg)
-- Mac OS X [64 bit](https://packages.cloudfoundry.org/stable?release=macosx64&version=$VERSION&source=github-rel) (pkg)
+- Debian [64 bit](https://packages.cloudfoundry.org/stable?release=debian64&version=$VERSION&source=github-rel) / [32 bit](https://packages.cloudfoundry.org/stable?release=debian32&version=$VERSION&source=github-rel) / [arm64](https://packages.cloudfoundry.org/stable?release=debianarm64&version=$VERSION&source=github-rel) (deb)
+- Redhat [64 bit](https://packages.cloudfoundry.org/stable?release=redhat64&version=$VERSION&source=github-rel) / [32 bit](https://packages.cloudfoundry.org/stable?release=redhat32&version=$VERSION&source=github-rel) / [aarch64](https://packages.cloudfoundry.org/stable?release=redhataarch64&version=$VERSION&source=github-rel) (rpm)
+- macOS [64 bit](https://packages.cloudfoundry.org/stable?release=macosx64&version=$VERSION&source=github-rel) / [arm](https://packages.cloudfoundry.org/stable?release=macosarm&version=$VERSION&source=github-rel) (pkg)
 - Windows [64 bit](https://packages.cloudfoundry.org/stable?release=windows64&version=$VERSION&source=github-rel) / [32 bit](https://packages.cloudfoundry.org/stable?release=windows32&version=$VERSION&source=github-rel) (zip)
 
 Binaries
 --------
-- Linux [64 bit](https://packages.cloudfoundry.org/stable?release=linux64-binary&version=$VERSION&source=github-rel) / [32 bit](https://packages.cloudfoundry.org/stable?release=linux32-binary&version=$VERSION&source=github-rel) (tgz) / [arm64](https://packages.cloudfoundry.org/stable?release=linuxarm64-binary&version=$VERSION&source=github-rel) (tgz)
-- Mac OS X [64 bit](https://packages.cloudfoundry.org/stable?release=macosx64-binary&version=$VERSION&source=github-rel) (tgz)
+- Linux [64 bit](https://packages.cloudfoundry.org/stable?release=linux64-binary&version=$VERSION&source=github-rel) / [32 bit](https://packages.cloudfoundry.org/stable?release=linux32-binary&version=$VERSION&source=github-rel) / [arm64](https://packages.cloudfoundry.org/stable?release=linuxarm64-binary&version=$VERSION&source=github-rel) (tgz)
+- macOS [64 bit](https://packages.cloudfoundry.org/stable?release=macosx64-binary&version=$VERSION&source=github-rel) / [arm](https://packages.cloudfoundry.org/stable?release=macosarm-binary&version=$VERSION&source=github-rel) (tgz)
 - Windows [64 bit](https://packages.cloudfoundry.org/stable?release=windows64-exe&version=$VERSION&source=github-rel) / [32 bit](https://packages.cloudfoundry.org/stable?release=windows32-exe&version=$VERSION&source=github-rel) (zip)