Fix RSA CMake error

[PengZheng]

Break cyclic dependency between examples and other RSA tests.

It fixes #383

[codecov-commenter]

Codecov Report

Merging #384 (9e2f814) into master (24d4f98) will increase coverage by 0.00%.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #384   +/-   ##
=======================================
  Coverage   72.69%   72.70%           
=======================================
  Files         204      204           
  Lines       31268    31268           
=======================================
+ Hits        22730    22732    +2     
+ Misses       8538     8536    -2     

Impacted Files	Coverage Δ
libs/utils/src/hash_map.c	93.25% <0.00%> (-0.29%)	⬇️
libs/framework/src/framework.c	77.55% <0.00%> (-0.07%)	⬇️
...dmin_websocket/src/pubsub_websocket_topic_sender.c	84.51% <0.00%> (+0.64%)	⬆️
...sub/pubsub_admin_zmq/src/pubsub_zmq_topic_sender.c	88.18% <0.00%> (+1.26%)	⬆️

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[pnoltes]

LGTM