libstdc++: Update Solaris baselines for GCC 13.0

This patch updates the libstdc++ Solaris baselines for GCC 13.

Tested on i386-pc-solaris2.11 and sparc-sun-solaris2.11 (Solaris 11.3
and 11.4).

2022-12-11  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

	libstdc++-v3:
	* config/abi/post/i386-solaris/baseline_symbols.txt: Regenerate.
	* config/abi/post/i386-solaris/amd64/baseline_symbols.txt:
	Likewise.
	* config/abi/post/sparc-solaris/baseline_symbols.txt: Likewise.
	* config/abi/post/sparc-solaris/sparcv9/baseline_symbols.txt:
	Likewise.