chore(deps): update zricethezav/gitleaks docker tag to v8.19.3

This MR contains the following updates:

Package	Type	Update	Change
zricethezav/gitleaks	image-name	patch	v8.19.2 -> v8.19.3

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Release Notes

gitleaks/gitleaks (zricethezav/gitleaks)

v8.19.3

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Changelog

• ed19c4e fix(config): extend allowlist & handle extend when validating (#​1524)
• 989ef19 refactor(kubernetes-secret): tweak variable chars (#​1520)
• 191eb43 Revert "remove validate config test temporarily" (#​1529)
• 78f7d3f feat: create fly.io rule (#​1528)
• 7098f6d fix: to many false-positive for gltf files, add gltf suffix to allowlist (#​1527)
• 97dbe1e Add support in .gitleaksignore file comment strings (#​1425) (#​1502)
• 9e06824 Restrict Etsy keywords (#​1491)
• db78260 feat(github): add entropy to rule (#​1489)
• df126a7 feat(gcp): update api key rule (#​1481)
• 75dd70e fix(hashicorp): ignore common fps (#​1498)
• 8510d39 fix(square): make prefix case sensitive (#​1469)
• 3698060 refactor(kubernetes-secret): collapse rules and update regex (#​1462)

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