elastic / cloudbeat / 23249957954

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github

chore: update Go version to 1.26.1 (#4052)

## Summary
- Update Go toolchain version to 1.26.1 across the project
- Upgrade golangci-lint from 2.4.0 to 2.11.3 (required — 2.4.0 was built
with Go 1.25 and can't lint Go 1.26.1 code)
- Disable newly introduced revive rules that flag pre-existing code
patterns
- Fix 3 prealloc issues by preallocating slices with known capacity

## Changes

### Go version bump
| File | From | To |
|------|------|----|
| `.go-version` | 1.25.5 | 1.26.1 |
| `go.mod` | 1.25.5 | 1.26.1 |
| `scripts/update_assets_md/go.mod` | 1.24.0 | 1.26.1 |
| `docs/version.asciidoc` | 1.25.4 | 1.26.1 |
| `bin/.go-1.25.5.pkg` | renamed | `bin/.go-1.26.1.pkg` |
| `bin/go` | `.go-1.25.5.pkg` | `.go-1.26.1.pkg` |
| `bin/gofmt` | `.go-1.25.5.pkg` | `.go-1.26.1.pkg` |

### golangci-lint upgrade
| File | From | To |
|------|------|----|
| `bin/.golangci-lint-2.4.0.pkg` | renamed |
`bin/.golangci-lint-2.11.3.pkg` |
| `bin/golangci-lint` | `.golangci-lint-2.4.0.pkg` |
`.golangci-lint-2.11.3.pkg` |
| `.golangci.yaml` | — | Disable 6 new revive rules |

### Prealloc fixes
- `internal/resources/fetching/fetchers/azure/assets_enricher.go`
- `internal/resources/providers/awslib/rds/provider.go`
- `internal/resources/providers/gcplib/inventory/provider.go`

## Test plan
- [ ] CI pipeline passes with the new Go version
- [ ] Linter passes (`golangci-lint run` exits 0)
- [ ] Build and unit tests succeed

3 of 3 new or added lines in 3 files covered. (100.0%)

9726 of 12830 relevant lines covered (75.81%)

16.41 hits per line