Add AI coding agent config files to gitignore #11

Job	Run time
Build for native target (macos-15, Xcode_16.4)	2m 51s
Test BridgeJS against Swift versions (swift:6.2, 602.0.0)	2m 59s
format	27s
Build and Test (ubuntu-22.04, https://download.swift.org/swift-6.1-release/ubuntu2204/swift-6.1-R...	13m 22s
check-bridgejs-generated	2m 48s
Build and Test (ubuntu-24.04, https://download.swift.org/swift-6.3-branch/ubuntu2404/swift-6.3-DE...	11m 47s
prettier	7s
Build and Test (ubuntu-22.04, https://download.swift.org/development/ubuntu2204/swift-DEVELOPMENT...	20m 33s
build-examples	20m 2s
Build and Test (ubuntu-24.04, https://download.swift.org/development/ubuntu2404/swift-DEVELOPMENT...	12m 6s
Test BridgeJS against Swift versions (swift:6.1.2, 601.0.0)	2m 57s
deploy-examples	5s
	1h 30m 4s

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