API-98: relayed v3 transactions support

[bogdan-rosianu]

Reasoning

• new relayed v3 transaction comming from new protocol versions lack support for filtering and both fields (relayer and relayerSignature) inside the API

Proposed Changes

• adjust queries/filter/responses to include the new transactions

How to test

• <api>/transactions/<hash of a tx with relayed v3> should contain relayer and relayerSignature
• <api>/transaction?relayer=erd1... should work

[github-actions]

k6 load testing comparison.
Base Commit Hash: 9638379
Target Commit Hash: 2a2de24

Metric	Base				Target				Diff
	Avg	Max	90	95	Avg	Max	90	95	Avg	Max	90	95
Pool	49.53	275.13	55.21	56.58	51.06	545.67	56.49	57.97	+3.09% 🔴	+98.33% 🔴	+2.32% 🔴	+2.46% 🔴
Transactions	68.10	2902.03	56.03	58.31	70.47	3010.26	57.17	59.19	+3.48% 🔴	+3.73% 🔴	+2.04% 🔴	+1.52% 🔴
Mex	50.18	811.75	55.11	56.58	50.61	126.21	56.51	57.90	+0.84% 🔴	-84.45% ✅	+2.55% 🔴	+2.33% 🔴
Nodes	49.49	307.20	55.15	56.57	51.17	411.20	56.53	58.11	+3.40% 🔴	+33.85% 🔴	+2.50% 🔴	+2.73% 🔴
Tokens	49.48	382.50	55.11	56.51	51.18	641.11	56.52	58.02	+3.43% 🔴	+67.61% 🔴	+2.56% 🔴	+2.68% 🔴
Accounts	50.78	1384.34	55.12	56.39	52.27	1371.40	56.53	57.92	+2.94% 🔴	-0.94% ✅	+2.56% 🔴	+2.71% 🔴
Blocks	55.22	1199.16	55.62	58.08	56.74	1162.02	56.86	59.19	+2.75% 🔴	-3.10% ✅	+2.24% 🔴	+1.91% 🔴
Test Run Duration	60009.36				60001.91

Legend: Avg - Average Response Time, Max - Maximum Response Time, 90 - 90th Percentile, 95 - 95th Percentile
All times are in milliseconds.