chore: ignore _test.go files in github secret scanning (#334)

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Closes #

**Proposed Changes**

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Adding an ignore file for github secret scanning, ignoring all _test.go
files
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**Checklist**

- [ ] I covered my changes with tests.
- [ ] I Updated the documentation that is affected by my changes:
  - [ ] Change in the CLI arguments
  - [ ] Change in the configuration file

I submit this contribution under the Apache-2.0 license.

Author: cx-diogo-rocha

.github/secret_scanning.yml

@@ -0,0 +1,2 @@
+paths-ignore:
+  - "**/*_test.go"