feat: support to set upstream proxy address

[LinuxSuRen]

No description provided.

[sonarcloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

No Coverage information
0.0% Duplication

[codacy-production]

Coverage summary from Codacy

Merging #86 (6f5ace7) into master (8da0890) - See PR on Codacy

Coverage variation	Diff coverage
+0.44%	∅

Coverage variation details

	Coverable lines	Covered lines	Coverage
Common ancestor commit (8da0890)	1356	1269	93.58%
Head commit (6f5ace7)	1356 (+0)	1275 (+6)	94.03% (+0.44%)

Coverage variation is the difference between the coverage for the head and common ancestor commits of the pull request branch: <coverage of head commit> - <coverage of common ancestor commit>

Diff coverage details

	Coverable lines	Covered lines	Diff coverage
Pull request (#86)	0	0	∅ (not applicable)

Diff coverage is the percentage of lines that are covered by tests out of the coverable lines that the pull request added or modified: <covered lines added or modified>/<coverable lines added or modified> * 100%

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