phpcs.xml: disable some unfixable smells
phpcs.xml: disable some unfixable smells

* PSR2R.Commenting.DocComment

We want to allow more compact docstrings, which will allow things like
one-line `@var` declarations. When these are required to be multi-line
docstrings, it interrupts the flow of the actual PHP code.

* PSR2R.Commenting.FullyQualifiedClassNameInDocBlock

The PSR2R sniffs do not understand advanced PHP typehints, such as
`numeric-string` or conditional return types, etc. Since these PHPStan
types provide more value than the sniff, we disable the sniff until it
can be updated to work better with PHPStan.

smrealms/smr,smrealms/smr,hemberger/smr,smrealms/smr,hemberger/smr,hemberger/smr,hemberger/smr