Fix sqlfluff fix command

[TylerJang27]

Fixes 2 issues:

• In some scenarios (such as when there are still issues after autofixes), sqlfluff fix will nonzero exit code, causing a linter failure presently. It will still format, so there's no other need for triage
• sqlfluff soft-deprecated the --force flag (it's now default on), so we can get ahead of that

[trunk-io]

⏱️ 15m total CI duration on this PR

Job	Cumulative Duration	Recent Runs
Windows Linter Tests	5m	🟩
Trunk Check runner [linux]	3m	🟩
Linter Tests ubuntu-latest	3m	🟩
Linter Tests macOS	2m	🟩
CodeQL-Build	1m	🟩
Repo Tests / Plugin Tests	31s	🟩
Detect changed files	4s	🟩
Aggregate Test Results	1s	🟩

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