test: local testing fixes

[suchapalaver]

Making these env variables available to the gateway got the local testing setup working for me.

[coveralls]

Pull Request Test Coverage Report for Build 15743458371

Details

• 0 of 1 (0.0%) changed or added relevant line in 1 file are covered.
• 5 unchanged lines in 2 files lost coverage.
• Overall coverage decreased (-0.04%) to 72.381%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
crates/config/src/config.rs	0	1	0.0%

Files with Coverage Reduction	New Missed Lines	%
crates/tap-agent/src/agent/sender_account.rs	1	77.25%
crates/watcher/src/lib.rs	4	92.71%

Totals
Change from base Build 15683389886:	-0.04%
Covered Lines:	8808
Relevant Lines:	12169

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💛 - Coveralls