Fix OOM because of watching configmap resource

[msherif1234]

Fix #56 reproduce steps are also doc in the issue

• before the fix

 oom-kill:constraint=CONSTRAINT_MEMCG,nodemask=(null),cpuset=cri-containerd-499c6676bdf79e4157b694d4730d50eec01501a8c4faea1395a1fc62e2d52b73.scope,mems_allowed=0,oom_memcg=/system.slice/docker-113354b7db17a99a283c23fa84fb21b639ee29a2ec5a747c7f7c033a5e19b39f.scope/kubelet.slice/kubelet-kubepods.slice/kubelet-kubepods-burstable.slice/kubelet-kubepods-burstable-podfd0578d2_fe8d_4c8d_ba5f_20c00dede626.slice/cri-containerd-499c6676bdf79e4157b694d4730d50eec01501a8c4faea1395a1fc62e2d52b73.scope,task_memcg=/system.slice/docker-113354b7db17a99a283c23fa84fb21b639ee29a2ec5a747c7f7c033a5e19b39f.scope/kubelet.slice/kubelet-kubepods.slice/kubelet-kubepods-burstable.slice/kubelet-kubepods-burstable-podfd0578d2_fe8d_4c8d_ba5f_20c00dede626.slice/cri-containerd-499c6676bdf79e4157b694d4730d50eec01501a8c4faea1395a1fc62e2d52b73.scope,task=bpfman-operator,pid=2304220,uid=65532
[534829.056623] Memory cgroup out of memory: Killed process 2304220 (bpfman-operator) total-vm:1398540kB, anon-rss:129324kB, file-rss:26880kB, shmem-rss:0kB, UID:65532 pgtables:440kB oom_score_adj:998

• After the fix

   PID USER      PR  NI    VIRT    RES    SHR S  %CPU  %MEM     TIME+ COMMAND                                                            
2272755 65532     20   0 1267076  39652  28032 S   0.3   0.1   0:02.86 bpfman-operator      

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 7 lines in your changes missing coverage. Please review.

Project coverage is 27.36%. Comparing base (4d90ded) to head (f823b05).
Report is 1 commits behind head on main.

Files	Patch %	Lines
cmd/bpfman-operator/main.go	0.00%	7 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #62      +/-   ##
==========================================
- Coverage   27.39%   27.36%   -0.03%     
==========================================
  Files          81       81              
  Lines        6968     6975       +7     
==========================================
  Hits         1909     1909              
- Misses       4873     4880       +7     
  Partials      186      186              

Flag	Coverage Δ
unittests	27.36% <0.00%> (-0.03%)	⬇️

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[anfredette]

LGTM