pymysql: bump version; pyproject-metadata: fix host build with Python 3.13 #26400

Job	Run time
Test Formalities / Test Formalities	17s
Feeds Package Test Build / Test i386_pentium-mmx	7m 17s
Feeds Package Test Build / Test arm_cortex-a9_vfpv3-d16	2m 35s
Feeds Package Test Build / Test mips_24kc	1s
Feeds Package Test Build / Test powerpc_464fp	3m 37s
Feeds Package Test Build / Test arm_cortex-a15_neon-vfpv4	18m 6s
Feeds Package Test Build / Test aarch64_generic	3m 28s
Feeds Package Test Build / Test mipsel_24kc	2m 47s
Feeds Package Test Build / Test powerpc_8548	3m 14s
Feeds Package Test Build / Test riscv64_generic	18m 6s
Feeds Package Test Build / Test x86_64	4m 24s
	1h 3m 52s

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