v1.45.1
cmake: update .gitignore files
Remove remaining SPDY code from the integration tests.
Run nghttpx integration test with cmake build
nghttpx: Refactor code to build cert_tree, add SNI test
integration-tests: support out-of-tree tests
integration: Adds tests for chunked response
nghttpx: Change mruby script handling
integration: Add TLS key and certificate for testing
integration: Add PROXY protocol v2 tests
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