perf: improve gzip performance with sync.pool

[rfyiamcool]

summary

use sync.pool to improve gzip compress/decompress performance. refer to the optimization in the opentelemetry collector.

https://github.com/open-telemetry/opentelemetry-collector/blob/main/config/confighttp/compressor.go#L27

benchmark result

goarch: amd64
pkg: github.com/openimsdk/open-im-server/v3/internal/msggateway
cpu: Intel(R) Core(TM) i7-9750H CPU @ 2.60GHz
BenchmarkCompress
BenchmarkCompress-12                  	    6334	    158260 ns/op	  814115 B/op	      20 allocs/op
BenchmarkCompressWithSyncPool
BenchmarkCompressWithSyncPool-12      	   56709	     19790 ns/op	     240 B/op	       3 allocs/op
BenchmarkDecompress
BenchmarkDecompress-12                	  147972	      8135 ns/op	   41749 B/op	       7 allocs/op
BenchmarkDecompressWithSyncPool
BenchmarkDecompressWithSyncPool-12    	  691808	      1674 ns/op	     565 B/op	       2 allocs/op
PASS
ok  	github.com/openimsdk/open-im-server/v3/internal/msggateway	7.339s

[sweep-ai]

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• Apply: Leftover TODOs in the code should be handled.
• Apply: All new business logic should have corresponding unit tests in the tests/ directory.
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[codecov]

Codecov Report

Merging #1321 (fcfe086) into main (a32e94b) will decrease coverage by 0.38%.
Report is 1 commits behind head on main.
The diff coverage is 51.42%.

@@           Coverage Diff            @@
##            main   #1321      +/-   ##
========================================
- Coverage   2.41%   2.04%   -0.38%     
========================================
  Files         13      26      +13     
  Lines        786    1908    +1122     
========================================
+ Hits          19      39      +20     
- Misses       764    1861    +1097     
- Partials       3       8       +5     

Files	Coverage Δ
internal/msggateway/init.go	0.00% <ø> (ø)
internal/msggateway/client.go	0.00% <0.00%> (ø)
internal/msggateway/compressor.go	35.08% <54.54%> (ø)

... and 10 files with indirect coverage changes