chore: adds dependabot.yml #1635

Job	Run time
Install on Node.js v18	53s
Install on Node.js v20	47s
Lint on Node.js v20	53s
Lint on Node.js v18	1m 4s
Test (Unit) on Node.js v18	1m 7s
Test (Unit) on Node.js v20	1m 19s
Audit on Node.js v20	12s
Audit on Node.js v18	14s
Test (Integration) on Node.js v18	21m 16s
Test (Integration) on Node.js v20	21m 11s
Test (Integration) on Node.js v20 with L3	19m 51s
Test (Integration) on Node.js v18 with L3	19m 54s
Test (Integration) on Node.js v20 with L3 with custom gas token (20 decimals)	20m 12s
Test (Integration) on Node.js v20 with L3 with custom gas token (18 decimals)	19m 57s
Test (Integration) on Node.js v18 with L3 with custom gas token (18 decimals)	19m 49s
Test (Integration) on Node.js v18 with L3 with custom gas token (20 decimals)	20m 10s
Test (Integration) on Node.js v20 with L3 with custom gas token (16 decimals)	20m 12s
Test (Integration) on Node.js v18 with L3 with custom gas token (16 decimals)	21m 32s
	3h 30m 33s

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