feat: implement #490 - Add JWKS caching with negative-response protection

Author: laurentketterle-hub

README.md

@@ -777,3 +777,8 @@ go test ./... -cover
 
 See the LICENSE file in the repository (if present). If none, assume proprietary until stated otherwise.
 "# Test" 
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+## Issue #490
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+Feature in development. Closes #490