Update `github.com/emersion/go-sasl` pseudo-version #715

Job	Run time
CI matrix / Assert PR branch is ahead	4s
Makefile / Assert PR branch is ahead	4s
CI matrix / Lint codebase (go-ci-oldstable, false)	34s
CI matrix / Lint codebase (go-ci-stable, false)	35s
CI matrix / Evaluate loopvar scoping changes	29s
CI matrix / Run tests (go-ci-oldstable, false)	29s
CI matrix / Lint codebase (go-ci-unstable, true)	34s
CI matrix / Run tests (go-ci-stable, false)	33s
CI matrix / Build codebase (go-ci-oldstable, false)	31s
CI matrix / Run tests (go-ci-unstable, true)	33s
CI matrix / Build codebase (go-ci-stable, false)	26s
CI matrix / Build codebase (go-ci-unstable, true)	26s
CI matrix / Optional Linting / Assert PR branch is ahead	5s
Makefile / Build codebase using Makefile quick recipe	42s
Makefile / Build codebase using Makefile all recipe	0s
Makefile / Lint codebase using Makefile	0s
CI matrix / Optional Linting / Lint codebase using optional linters	0s
	6m 5s

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