Bump to Go 1.26 #9425

Job	Run time
misc	46s
tidy	43s
test (windows-latest)	23m 37s
lint (windows-latest)	11m 2s
extension	35s
lint (ubuntu-latest)	7m 29s
test (no submodules)	10m 21s
build	4m 3s
generate	12m 36s
test (ubuntu-latest)	14m 15s
test (concurrent test programs)	14m 5s
test (race mode)	13m 19s
smoke	5m 46s
test (noembed)	10m 10s
lint (noembed)	7m 4s
format	1m 12s
required	2s
	2h 17m 5s

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