improve layer build

[xuan-cao-swi]

Description

1. added more log output
2. use gem path to install gem
3. updated the gem version extraction method for reverselab

Test (if applicable)

Layer building succeeded (action).
Tested on aws lambda.

[cheempz]

Thanks for the revisit @xuan-cao-swi! I think it's all working, but there could a few more improvements. The main one i'll actually describe here:

Right now we're hardcoding and peppering in various places the ruby version, which can get easily out of sync. How about making the versions a workflow variable that's easily visible and changed in once place?

[xuan-cao-swi]

Right now we're hardcoding and peppering in various places the ruby version, which can get easily out of sync. How about making the versions a workflow variable that's easily visible and changed in once place?

Updated to use single env variable from github action file that define all ruby version.

[cheempz]

LGTM, thanks for the revisit @xuan-cao-swi!

[cheempz]

Actually, running into an issue when i tried the 7_0_0.prev3 layer in an aarch64 Lambda, seems google protobuf cannot be found. will send you the logs.

My bad only saw the changes from a single commit

[cheempz]

LGTM