In the release CI and related scripts, when comparing and printing to the CI,
use the most recent **ancestor** tag(s) for the release branch rather than
the most recent one(s).
And fix the build_wamr_sdk.yml and build_wamr_lldb.yml CIs.
Add CIs to enable the release process of a new version of WAMR,
and build and publish the binary files when a version is released,
including iwasm, wamrc, lldb, vscode-extension and wamr-ide for
Ubuntu-20.04, Ubuntu-22.04 and MacOS.
And refine the CIs to test spec cases.
