Fix action interpolation syntax

[tenhobi]

Fix action interpolation syntax #13

[ad-m]

It breaks build:

1s
##[error]Fail to load /home/runner/work/_actions/ad-m/git-push-action/master/action.yml
Current runner version: '2.159.0'
Prepare workflow directory
Prepare all required actions
Download action repository 'actions/checkout@v1'
Download action repository 'ad-m/git-push-action@master'
##[error](Line: 9, Col: 18):
##[error](Line: 9, Col: 18): Unrecognized named-value: 'secrets'. Located at position 1 within expression: secrets.GITHUB_TOKEN
##[error]Fail to load /home/runner/work/_actions/ad-m/git-push-action/master/action.yml

[tenhobi]

What build does it breaks? The Docker Image CI actions, I dont see any issue on those? :O

[ad-m]

@tenhobi , private build using that action.