Set executable permissions for build scripts

[FabioZumbi12]

Description

Add execute permissions to build scripts for macOS and Ubuntu.

Motivation and Context

This modification makes build ready to work after using in our plugins.

How Has This Been Tested?

Yes, on my own plugins using this template.

Types of changes

Changes action.yml to run chmod -x on executables for macos and linux.

Checklist:

• My code has been run through clang-format.
• I have read the contributing document.
• My code is not on the master branch.
• The code has been tested.
• All commit messages are properly formatted and commits squashed where appropriate.
• I have included updates to all appropriate documentation.

[exeldro]

the files should have execute permissions in git, not added on running build

[FabioZumbi12]

Since I'm using VS Code on Windows, these permissions aren't set by default. When I push to the Git repository, the files lack the necessary execution rights. These chmod lines ensure the files are ready to run immediately after deployment.

[exeldro]

you can run git add --chmod=+x * in the scripts folder