[+] add arm64 platform support to Docker image, fixes #786

[pashagolub]

Bump Go to 1.26 and also remove hard coded GO111MODULE, GOOS and GOARCH

[coveralls]

Coverage Report for CI Build 28453768676

Coverage decreased (-0.2%) to 89.428%

Details

• Coverage decreased (-0.2%) from the base build.
• Patch coverage: No coverable lines changed in this PR.
• 6 coverage regressions across 2 files.

Uncovered Changes

No uncovered changes found.

Coverage Regressions

6 previously-covered lines in 2 files lost coverage.

File	Lines Losing Coverage	Coverage
internal/scheduler/chain.go	3	86.49%
internal/scheduler/interval_chain.go	3	82.61%

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Coverage Stats

Relevant Lines:	2289
Covered Lines:	2047
Line Coverage:	89.43%
Coverage Strength:	1.02 hits per line

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💛 - Coveralls