haskell-hindent: disable test suite to fix the build

Test suite hspec: RUNNING...
hspec: test/gibiansky/tests/: getDirectoryContents: does not exist (No such file or directory)
Test suite hspec: FAIL
Test suite logged to: dist/test/hindent-3.9-hspec.log
0 of 1 test suites (0 of 1 test cases) passed.