Add contextMiddlewareFactoryWithFixedSystemBaseUri-function #309

Job	Run time
Lint code	12s
Generate documentation	1m 7s
Check license conformity	13s
Build with Node.js 16	45s
Build with Node.js 17	3m 14s
Test for Node.js 18 on ubuntu-latest	1m 3s
Build with Node.js 18	1m 22s
Test for Node.js 20 on ubuntu-latest	1m 3s
Test for Node.js 21 on ubuntu-latest	4m 33s
Test for Node.js 18 on macos-latest	50s
Test for Node.js 20 on macos-latest	1m 4s
Test for Node.js 21 on macos-latest	3m 8s
Test for Node.js 18 on windows-latest	1m 45s
Test for Node.js 20 on windows-latest	1m 44s
Test for Node.js 21 on windows-latest	4m 38s
	26m 41s

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