release 2.1.1

Bugfixes

• fix URL decoding of HTTP request query parameters; see OpenIDC/ngx_openidc_module#24; thanks @drzraf
• test: add a space after the status code in the HTTP responses; see curl/curl#16692 ; thanks @charles2910 and @bagder

Other

• support compilation against NGINX 1.26.3 by adding include paths for quic and http/v3
• add RHEL 10 packages