[NFC][lldb] fix docstring indentation (#175042)

This patch fixes the indentation of 2 docstrings in
`TestDAP_runInTerminal.py`.

Running `black` on that file with the default settings causes this
change. `darker` does not seem to catch it.

This is a prelude to https://github.com/llvm/llvm-project/pull/174635.

GitOrigin-RevId: 672a4c3f34ef0ecbef8966050b4d2105f4b6d088