Add GitHub Actions workflows for hybrid npm/Maven/NuGet publishing

[chungjac]

Problem

Relied on Github Actions to do the version increment, but actually any commits going into main but be done via PR, or have the appropriate permissions

remote: error: GH013: Repository rule violations found for refs/heads/main.        
remote: Review all repository rules at https://github.com/aws/aws-toolkit-common/rules?ref=refs%2Fheads%2Fmain        
remote: 
remote: - Changes must be made through a pull request.        
remote: 
remote: - 4 of 4 required status checks are expected.        
remote: 
To https://github.com/aws/aws-toolkit-common
 ! [remote rejected] main -> main (push declined due to repository rule violations)
error: failed to push some refs to 'https://github.com/aws/aws-toolkit-common'
Error: Process completed with exit code 1.

Solution

Codepipelines has permission as it authenticates as aws-toolkit-automation user with write permissions to be able to push commits directly into main

New Flow

1. When user merges PR to main, triggers Github Actions workflow which immediately triggers the CodePipeline
2. CodePipeline goes through stages
   1. clone repo
   2. aws-toolkit-automation commits version increment to main
   3. build maven/nuget
   4. publish maven/nuget
3. When aws-toolkit-automation commits version increment to main, Github Actions workflow will publish npm

License

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.