Update dependencies and enhance secure environment management #39

Job	Run time
build (macos-latest, darwin, arm64, 1, mcpproxy-darwin-arm64, tar.gz)	50s
build (macos-latest, darwin, amd64, 1, mcpproxy-darwin-amd64, tar.gz)	51s
build (ubuntu-latest, linux, amd64, 0, mcpproxy-linux-amd64, tar.gz)	53s
build (ubuntu-latest, windows, amd64, 0, mcpproxy-windows-amd64.exe, zip)	56s
	3m 30s

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