Bump Go to 1.17.6

[realshuting]

Fixes #109.

[realshuting]

@fjogeleit - can you help me understand these errors?

Error: /17 06:08:30 [ERROR] S3.AccessKeyID has not been declared
=== RUN   Test_ResolveTargetWithoutHost/S3.AccessKey#01
Error: /17 06:08:30 [ERROR] S3.AccessKeyID has not been declared
=== RUN   Test_ResolveTargetWithoutHost/S3.SecretAccessKey
Error: /17 06:08:30 [ERROR] S3.SecretAccessKey has not been declared
=== RUN   Test_ResolveTargetWithoutHost/S3.Region
Error: /17 06:08:30 [ERROR] S3.Region has not been declared
=== RUN   Test_ResolveTargetWithoutHost/S3.Bucket
Error: /17 06:08:30 [ERROR] S3.Bucket has to be declared
--- PASS: Test_ResolveTargetWithoutHost (0.00s)
    --- PASS: Test_ResolveTargetWithoutHost/Loki (0.00s)
    --- PASS: Test_ResolveTargetWithoutHost/Elasticsearch (0.00s)
    --- PASS: Test_ResolveTargetWithoutHost/Slack (0.00s)
    --- PASS: Test_ResolveTargetWithoutHost/Discord (0.00s)
    --- PASS: Test_ResolveTargetWithoutHost/Teams (0.00s)
    --- PASS: Test_ResolveTargetWithoutHost/S3.Endoint (0.00s)
    --- PASS: Test_ResolveTargetWithoutHost/S3.AccessKey (0.00s)
    --- PASS: Test_ResolveTargetWithoutHost/S3.AccessKey#01 (0.00s)
    --- PASS: Test_ResolveTargetWithoutHost/S3.SecretAccessKey (0.00s)
    --- PASS: Test_ResolveTargetWithoutHost/S3.Region (0.00s)
    --- PASS: Test_ResolveTargetWithoutHost/S3.Bucket (0.00s)

[coveralls]

Pull Request Test Coverage Report for Build 1857075428

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 93.761%

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Totals
Change from base Build 1849555576:	0.0%
Covered Lines:	2104
Relevant Lines:	2244

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💛 - Coveralls

[fjogeleit]

Hey Shuting, this errors are just log messages for misconfigured S3 targets. I just rerun the action and it passed. Thanks for your contribution 🙏