doesn't support python3.10.9

[cocowool]

` python3 tplmap.py -u "http://61.147.171.105:55831/info\?file\=a.txt"
Tplmap 0.5
Automatic Server-Side Template Injection Detection and Exploitation Tool

Testing if GET parameter 'file' is injectable
Exiting: module 'collections' has no attribute 'Mapping'`

[cehuda1]

im too

[wdearzh]

edit core/plugin.py and change "collections.Mapping" to "collections.abc.Mapping"

[rnocx]

edit core/plugin.py and change "collections.Mapping" to "collections.abc.Mapping"

This also works in 3.11

[0x25]

work to the next error

Exiting: 'bool' object has no attribute 'replace'

[r-erd]

It might be a good idea to merge this issue with #104 if there are no other compatibility issues related to the python version.