go.mod: update minimum Go version to 1.23.0 #1091

Job	Run time
CI matrix / Assert PR branch is ahead	15s
Makefile / Assert PR branch is ahead	5s
Makefile / Build codebase using Makefile quick recipe	3m 11s
Makefile / Lint codebase using Makefile	0s
Makefile / Build codebase using Makefile all recipe	0s
CI matrix / Run tests (go-ci-oldstable, false)	3m 11s
CI matrix / Evaluate loopvar scoping changes	2m 3s
CI matrix / Run tests (go-ci-stable, false)	3m 16s
CI matrix / Build codebase (go-ci-oldstable, false)	3m 6s
CI matrix / Lint codebase (go-ci-oldstable, false)	3m 15s
CI matrix / Run tests (go-ci-unstable, true)	3m 12s
CI matrix / Build codebase (go-ci-stable, false)	3m 16s
CI matrix / Lint codebase (go-ci-stable, false)	3m 16s
CI matrix / Build codebase (go-ci-unstable, true)	3m 5s
CI matrix / Lint codebase (go-ci-unstable, true)	3m 15s
CI matrix / Optional Linting / Assert PR branch is ahead	8s
CI matrix / Optional Linting / Lint codebase using optional linters (go-ci-oldstable, true)	47s
CI matrix / Optional Linting / Lint codebase using optional linters (go-ci-stable, true)	50s
CI matrix / Optional Linting / Lint codebase using optional linters (go-ci-unstable, true)	49s
	37m 0s

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