feat: Allow setting workspace thresholds from the api

[Emyrk]

What this does

Adds a --auto-off to envs edit and envs create to set auto off on a per workspace basis

coder envs create autooff --auto-off=1m --image ubuntu

coder envs edit ubuntu --auto-off=5m 

[shortcut-integration]

This pull request has been linked to Shortcut Story #15197: Allow disabling auto off for select workspaces.

[coveralls]

Pull Request Test Coverage Report for Build 1268144673

Warning: This coverage report may be inaccurate.

This pull request's base commit is no longer the HEAD commit of its target branch. This means it includes changes from outside the original pull request, including, potentially, unrelated coverage changes.

• For more information on this, see Tracking coverage changes with pull request builds.
• To avoid this issue with future PRs, see these Recommended CI Configurations.
• For a quick fix, rebase this PR at GitHub. Your next report should be accurate.

Details

• 44 of 47 (93.62%) changed or added relevant lines in 1 file are covered.
• 6 unchanged lines in 1 file lost coverage.
• Overall coverage decreased (-0.03%) to 48.018%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
internal/cmd/workspaces.go	44	47	93.62%

Files with Coverage Reduction	New Missed Lines	%
wsnet/dial.go	6	76.78%

Totals
Change from base Build 1237802265:	-0.03%
Covered Lines:	2823
Relevant Lines:	5879

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💛 - Coveralls