cubicweb #14214794 crash during CSS cache generation under windows [validation pending]

because of different behaviour of os.rename (doesn't overwrite existing file if any but raise an error)

prioritynormal
typebug
done in3.22.4
load left0.000
closed by#fb03a4113979 [web] fix os.rename usage on windows when destination exists, #a25e52cd8be4 [web] fix os.rename usage on windows when destination exists, #f6ba947c11ee [web] Fix bug with usage of os.rename under windows environment
patch[web] fix os.rename usage on windows when destination exists [applied][web] fix os.rename usage on windows when destination exists [applied][web] fix os.rename usage on windows when destination exists [rejected][web] Fix bug with usage of os.rename under windows environment [applied]