deps: update timezone to 2026a #4071

Job	Run time
Build slim tarball	2m 7s
aarch64-linux: with shared libraries	18m 5s
x86_64-darwin: with shared libraries	35m 59s
aarch64-darwin: with shared libraries	20m 23s
x86_64-linux: with shared libraries	21m 1s
	1h 37m 35s

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