fix: prevent wild card pattern from double escaped

[sweatybridge]

What kind of change does this PR introduce?

Bug fix #1428 (comment)

What is the current behavior?

'*' was double escaped to '\''*'\'' by bash.

What is the new behavior?

Always set --schema flag so we don't need to optionally pass in --extension flag to pg_dump.

Additional context

Add any other context or screenshots.

[coveralls]

Pull Request Test Coverage Report for Build 7684090367

• -4 of 6 (33.33%) changed or added relevant lines in 1 file are covered.
• 5 unchanged lines in 1 file lost coverage.
• Overall coverage decreased (-0.04%) to 58.764%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
internal/db/dump/dump.go	2	6	33.33%

Files with Coverage Reduction	New Missed Lines	%
internal/gen/keys/keys.go	5	11.76%

Totals
Change from base Build 7666136703:	-0.04%
Covered Lines:	6135
Relevant Lines:	10440

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💛 - Coveralls