Fix windows CI (#504)

* Update tlmgr so that it doesn't cause errors

* Update poetry lock file

* ci: try installing pyreadline before

* cleaning: remove pyreadline

Author: naveen521kk

.github/workflows/ci.yml

@@ -83,6 +83,7 @@ jobs:
           Invoke-WebRequest "https://ci.appveyor.com/api/projects/yihui/tinytex/artifacts/TinyTeX.zip?job=image:%20Visual%20Studio%202019" -O "$($env:TMP)\TinyTex.zip"
           Expand-Archive -LiteralPath "$($env:TMP)\TinyTex.zip" -DestinationPath "$($PWD)\ManimCache\LatexWindows"
           $env:Path = "$($PWD)\ManimCache\LatexWindows\TinyTeX\bin\win32;$($env:PATH)"
+          tlmgr update --self
           tlmgr install standalone preview doublestroke ms setspace rsfs relsize ragged2e fundus-calligra microtype wasysym physics dvisvgm jknapltx wasy cm-super babel-english
           $env:PATH=$OriPath
           echo "Completed Latex Install Sox"