Improve mgmt sync performance

[lixmal]

Describe your changes

old:

$ go test -run '^$' -bench=BenchmarkUpdateAccountPeers ./management/server
goos: linux
goarch: amd64
pkg: github.com/netbirdio/netbird/management/server
cpu: 13th Gen Intel(R) Core(TM) i7-1355U
BenchmarkUpdateAccountPeers/Small-12                 568                 1.826 ms/op
BenchmarkUpdateAccountPeers/Medium-12                  9               139.3 ms/op
BenchmarkUpdateAccountPeers/Large-12                   1             15933 ms/op
BenchmarkUpdateAccountPeers/Small_single-12          198                 5.620 ms/op
BenchmarkUpdateAccountPeers/Medium_single-12           2               569.7 ms/op
BenchmarkUpdateAccountPeers/Large_5-12                 1             25845 ms/op
PASS
ok      github.com/netbirdio/netbird/management/server  59.603s

new:

$ go test -run '^$' -bench=BenchmarkUpdateAccountPeers ./management/server
goos: linux
goarch: amd64
pkg: github.com/netbirdio/netbird/management/server
cpu: 13th Gen Intel(R) Core(TM) i7-1355U
BenchmarkUpdateAccountPeers/Small-12                 649                 1.824 ms/op
BenchmarkUpdateAccountPeers/Medium-12                 30                53.51 ms/op
BenchmarkUpdateAccountPeers/Large-12                   1              4022 ms/op
BenchmarkUpdateAccountPeers/Small_single-12          664                 4.034 ms/op
BenchmarkUpdateAccountPeers/Medium_single-12           4               311.5 ms/op
BenchmarkUpdateAccountPeers/Large_5-12                 1              7261 ms/op
PASS
ok      github.com/netbirdio/netbird/management/server  28.074s

Benchmark	Old Time (ms)	New Time (ms)	Improvement (%)
Small	1.826	1.824	0.11%
Medium	139.3	53.51	61.59%
Large	15933	4022	74.76%
Small_single	5.620	4.034	28.22%
Medium_single	569.7	311.5	45.32%
Large_5	25845	7261	71.90%

Issue ticket number and link

Checklist

• Is it a bug fix
• Is a typo/documentation fix
• Is a feature enhancement
• It is a refactor
• Created tests that fail without the change (if possible)
• Extended the README / documentation, if necessary

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
4 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud