Fix the conditions for file changes that trigger workflows for github

[empiredan]

While only doc files such as LICENSE or NOTICE are changed and committed, cpp workflows for github will report error as follows (see https://github.com/apache/incubator-pegasus/runs/7854426641?check_suite_focus=true):

Run rm -rf thirdparty
  rm -rf thirdparty
  tar -zcvhf release__builder.tar DSN_ROOT/ src/builder/bin src/builder/src/server/test/config.ini  --exclude='*CMakeFiles*'
  shell: sh -e {0}
tar: DSN_ROOT: Cannot stat: No such file or directory
tar: src/builder/bin: Cannot stat: No such file or directory
tar: src/builder/src/server/test/config.ini: Cannot stat: No such file or directory
tar: Exiting with failure status due to previous errors
Error: Process completed with exit code [2](https://github.com/apache/incubator-pegasus/runs/7854426137?check_suite_focus=true#step:11:2).

The binaries are not built since there is not any source file changed. However, since the binaries are used to be build packages which will be uploaded as artifacts, it will report "No such file or directory".