ci(pullapprove): fix file conditions

[gkalpak]

According to the docs, the correct keywords are include/exclude, without the trailing s.

Please check if the PR fulfills these requirements

• The commit message follows our guidelines: https://github.com/angular/angular/blob/master/CONTRIBUTING.md#commit
• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)

What kind of change does this PR introduce? (check one with "x")

[ ] Bugfix
[ ] Feature
[ ] Code style update (formatting, local variables)
[ ] Refactoring (no functional changes, no api changes)
[ ] Build related changes
[x] CI related changes
[ ] Other... Please describe:

What is the current behavior? (You can also link to an open issue here)
The groups root and build-and-ci incorrectly use includes/excludes, which are apparently ignored by PullApprove and cause thoe two groups to match any file.

What is the new behavior?
The groups root and build-and-ci only match the intended files (TBD 😃).

Does this PR introduce a breaking change? (check one with "x")

[ ] Yes
[x] No

[tbosch]

Thanks! @IgorMinar FYI!

[IgorMinar]

thanks for fixing my screw up!

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