Please address the comments from this code review:

## Overall Comments
- Using `matrix.name == 'race-condition-debug' && 'race' || ''` relies on GitHub’s truthy/falsey behavior and is a bit opaque; consider moving the condition into the matrix definition (e.g., a `race: true` flag) or a small reusable expression to make the cache key logic more readable and less brittle to matrix-name changes.
- For the `pre-build-go-binaries` job, double-check that passing an empty string as `key-suffix` is treated the same by `.github/actions/cache-go-dependencies` as omitting the input entirely (as done in `build-and-push-operator`), or adjust the action so unset vs empty suffix behaves consistently.

## Individual Comments

### Comment 1
<location path=".github/workflows/build.yaml" line_range="213" />
<code_context>
         uses: ./.github/actions/cache-go-dependencies
         with:
-          key-suffix: ${{ matrix.name }}
+          key-suffix: ${{ matrix.name == 'race-condition-debug' && 'race' || '' }}

       - uses: ./.github/actions/handle-tagged-build
</code_context>
<issue_to_address>
**suggestion:** Consider making this conditional expression more explicit to avoid ambiguity in evaluation and future edits.

GitHub Actions’ `&&`/`||` precedence and truthiness can be hard to parse. Adding parentheses like `${{ (matrix.name == 'race-condition-debug' && 'race') || '' }}` makes the grouping clearer. If the action distinguishes `null` from `''`, you could instead use `${{ matrix.name == 'race-condition-debug' && 'race' || null }}` to signal that the suffix is intentionally omitted.

```suggestion
          key-suffix: ${{ (matrix.name == 'race-condition-debug' && 'race') || '' }}
```
</issue_to_address>

Please address the comments from this code review:

## Overall Comments
- The GitHub Actions expression `${{ (matrix.name == 'race-condition-debug' && 'race') || '' }}` is a bit terse; consider using a more explicit pattern (e.g., the `if` function or a short comment) so future readers immediately understand that only the race build gets a distinct cache key.
- In `scanner-build.yaml`, you set `GOARCH` only on the cache step; if any later Go steps rely on `go env GOARCH`, it may be safer to set `GOARCH` at the job level (or at least consistently on all Go-related steps) to avoid subtle cross-arch issues.

Please address the comments from this code review:

## Overall Comments
- The conditional expression for `key-suffix` in `build.yaml` (`${{ (matrix.name == 'race-condition-debug' && 'race') || '' }}`) is a bit opaque and tightly coupled to the matrix name; consider either using a more explicit mapping or a dedicated matrix field (e.g. `cacheKeySuffix`) to make future variant changes less error-prone.
- In `unit-tests.yaml`, using `matrix.gotags` directly as the `key-suffix` assumes only `''` and `release`; if more complex tag sets are introduced later it may be safer to normalize or hash them to avoid unexpected characters in cache keys or collisions between equivalent tag permutations.