PullRequestLinuxGCCTestingSettings.cmake: add scotch to all PR builds
Created by: prwolfe
This will close issue #2065
@trilinos/framework
Motivation and Context
Scotch is in use in multiple downstream applications
Checklist
- [ x ] My commit messages mention the appropriate GitHub issue numbers.
- [ x ] My code follows the code style of the affected package(s).
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My change requires a change to the documentation. -
I have updated the documentation accordingly. - [ x ] I have read the code contribution guidelines for this project.
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I have added tests to cover my changes. -
All new and existing tests passed. -
No new compiler warnings were introduced. -
These changes break backwards compatibility.