Next static build and export with HTML/JS minification

Version updated for tsg-iitkgp/next-build-export-action to version v1.2.

• This action is used across all versions by 18 repositories.

Go to the GitHub Marketplace to find the latest changes.

Release notes

Add image minification:

• For JPG images, use jpegoptim
• For PNG images, use pngcrush

• tsg-iitkgp
• GitHub Actions