Introduce a memory leak to check k6 tests

[obulat]

Fixes

Related to #5179 by @obulat

Description

Revert "Fix frontend memory leak (#4864)" - to see how a memory leak affects the CPU and memory values under load test

This reverts commit a5d966d

This commit will be reverted after the k6 load testing checks are done

Testing Instructions

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[github-actions]

Latest k6 run output¹

     ✓ status was 200

     checks.........................: 100.00% ✓ 6400      ✗ 0   
     data_received..................: 1.5 GB  7.9 MB/s
     data_sent......................: 837 kB  4.5 kB/s
     http_req_blocked...............: avg=12.24µs  min=1.97µs  med=4µs      max=8.87ms  p(90)=5.67µs p(95)=6.11µs  
     http_req_connecting............: avg=6.87µs   min=0s      med=0s       max=8.83ms  p(90)=0s     p(95)=0s      
     http_req_duration..............: avg=654.36ms min=28.37ms med=569.07ms max=2.46s   p(90)=1.18s  p(95)=1.27s   
       { expected_response:true }...: avg=654.36ms min=28.37ms med=569.07ms max=2.46s   p(90)=1.18s  p(95)=1.27s   
   ✓ http_req_failed................: 0.00%   ✓ 0         ✗ 6400
     http_req_receiving.............: avg=174.55µs min=36.16µs med=116.84µs max=41.48ms p(90)=185µs  p(95)=221.06µs
     http_req_sending...............: avg=21.34µs  min=5.95µs  med=19.3µs   max=1.98ms  p(90)=25.3µs p(95)=27.43µs 
     http_req_tls_handshaking.......: avg=0s       min=0s      med=0s       max=0s      p(90)=0s     p(95)=0s      
     http_req_waiting...............: avg=654.17ms min=28.21ms med=568.81ms max=2.46s   p(90)=1.18s  p(95)=1.27s   
     http_reqs......................: 6400    34.060096/s
     iteration_duration.............: avg=3.49s    min=1.1s    med=2.98s    max=8.61s   p(90)=6.85s  p(95)=7.12s   
     iterations.....................: 1200    6.386268/s
     vus............................: 1       min=1       max=30
     vus_max........................: 30      min=30      max=30

Footnotes

1. This comment will automatically update with new output each time k6 runs for this PR ↩