🔒️ use 2048 bit key

cd test/fixtures

openssl genpkey -algorithm RSA -out new_server.key -pkeyopt rsa_keygen_bits:2048

openssl x509 -in server.crt -signkey new_server.key -days 3650 -out new_server.crt

openssl x509 -in new_server.crt -text -noout

mv new_server.crt server.crt

mv new_server.key server.key

test/fixtures/server.crt

@@ -1,15 +1,21 @@
 -----BEGIN CERTIFICATE-----
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+3PDrTw==
 -----END CERTIFICATE-----

test/fixtures/server.key

@@ -1,15 +1,28 @@
------BEGIN RSA PRIVATE KEY-----
-MIICXQIBAAKBgQDYG398zqN6Yv/FAx77eoLLje4VNCYDXUciWBzceaZ5u/rtP/Xs
-hTQWDKFfUbb/kmniDazsCasSoNsUCrcqQPJF1jF3F9XjsZxcggDab8MAbAMhnhJa
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------END RSA PRIVATE KEY-----
+-----BEGIN PRIVATE KEY-----
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+-----END PRIVATE KEY-----