gh-101100: Expand list of clean docs (GH-103135)

Follow on from https://github.com/python/cpython/pull/103116.

Expand list of clean docs files from 3 to 181. These files have no Sphinx warnings, and their presence in this list means that any new warnings introduced will fail the build.

The list was created by subtracting the list of files with warnings from a list of all files.

I tested with all of those, but found that `touch`ing two clean files (https://github.com/python/cpython/blob/main/Doc/includes/wasm-notavail.rst and https://github.com/python/cpython/blob/main/Doc/whatsnew/changelog.rst) caused a cascade effect and resulted in a number of dirty files being rebuilt too, and failing the build. So those two have been omitted.

Automerge-Triggered-By: GH:hugovk

Doc/tools/touch-clean-files.py

@@ -18,3 +18,4 @@ print("Touching:")
 for filename in CLEAN:
     print(filename)
     filename.touch()
+print(f"Touched {len(CLEAN)} files")