chore: ignore spelling from requirements files

Signed-off-by: Sergio Schvezov <sergio.schvezov@canonical.com>

pyproject.toml

@@ -123,7 +123,7 @@ line-length = 99
 
 [tool.codespell]
 ignore-words-list = "buildd,crate,keyserver,comandos,ro,dedent,dedented,tread,socio-economic"
-skip = ".tox,.git,build,.*_cache,__pycache__,*.tar,*.snap,*.png,./node_modules,./docs/_build,.direnv,.venv,venv,.vscode,charmcraft.spec"
+skip = "requirements*.txt,.tox,.git,build,.*_cache,__pycache__,*.tar,*.snap,*.png,./node_modules,./docs/_build,.direnv,.venv,venv,.vscode,charmcraft.spec"
 quiet-level = 3
 check-filenames = true