update go version to 1.25.7

[ravisastryk]

fixes: #1490

Note:
Go 1.24.12 has a known crypto/tls vulnerability (CVE-2025-68121 - TLS session resumption authentication bypass via Config.GetConfigForClient), which was patched in Go 1.24.13. Hence with this upgrade, we need this change too.

[codecov-commenter]

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Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 69.47%. Comparing base (1216c9b) to head (4fa3de6).
⚠️ Report is 178 commits behind head on master.
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Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1492      +/-   ##
==========================================
+ Coverage   68.49%   69.47%   +0.97%     
==========================================
  Files          75       85      +10     
  Lines        4384     6732    +2348     
==========================================
+ Hits         3003     4677    +1674     
- Misses       1233     1827     +594     
- Partials      148      228      +80     

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