feat: added agencyTimezone to JSON report summary

[cka-y]

Summary:

Closes #1943

Expected behavior:

Example JSON report using this feed

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[github-actions]

📝 Acceptance Test Report

📋 Summary

✅ The rule acceptance has passed for commit 7a41769
Download the full acceptance test report here (report will disappear after 90 days).

📊 Notices Comparison

New Errors (0 out of 1792 datasets, ~0%) ✅

No changes were detected due to the code change.

Dropped Errors (0 out of 1792 datasets, ~0%) ✅

No changes were detected due to the code change.

New Warnings (0 out of 1792 datasets, ~0%) ✅

No changes were detected due to the code change.

Dropped Warnings (0 out of 1792 datasets, ~0%) ✅

No changes were detected due to the code change.

🛡️ Corruption Check

0 out of 1792 sources (~0 %) are corrupted.

⏱️ Performance Assessment

📈 Validation Time

Assess the performance in terms of seconds taken for the validation process.

Time Metric	Dataset ID	Reference (s)	Latest (s)	Difference (s)
Average	--	3.67	3.77	⬆️+0.10
Median	--	1.34	1.37	⬆️+0.03
Standard Deviation	--	10.67	10.65	⬇️-0.02
Minimum in References Reports	us-california-city-of-wasco-gtfs-1788	0.48	0.55	⬆️+0.07
Maximum in Reference Reports	gb-unknown-uk-aggregate-feed-gtfs-2014	287.72	285.47	⬇️-2.25
Minimum in Latest Reports	us-oregon-high-desert-point-gtfs-636	0.52	0.52	⬇️-0.01
Maximum in Latest Reports	gb-unknown-uk-aggregate-feed-gtfs-2014	287.72	285.47	⬇️-2.25

📜 Memory Consumption

Metric	Dataset ID	Reference (s)	Latest (s)	Difference (s)
Average	--	460.50 MiB	461.36 MiB	⬆️+886.29 KiB
Median	--	333.92 MiB	331.92 MiB	⬇️-2.00 MiB
Standard Deviation	--	740.46 MiB	727.70 MiB	⬇️-12.76 MiB
Minimum in References Reports	us-connecticut-middletown-area-transit-gtfs-576	39.66 MiB	415.92 MiB	⬆️+376.26 MiB
Maximum in Reference Reports	gb-unknown-uk-aggregate-feed-gtfs-2014	10.73 GiB	10.98 GiB	⬆️+264.30 MiB
Minimum in Latest Reports	ro-vrancea-consiliul-judetean-vrancea-gtfs-1984	68.86 MiB	38.19 MiB	⬇️-30.66 MiB
Maximum in Latest Reports	gb-unknown-uk-aggregate-feed-gtfs-2014	10.73 GiB	10.98 GiB	⬆️+264.30 MiB