Update Docker image ghcr.io/flaresolverr/flaresolverr to v3.3.21

[renovate]

This PR contains the following updates:

Package	Update	Change
ghcr.io/flaresolverr/flaresolverr	patch	v3.3.20 -> v3.3.21

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Release Notes

FlareSolverr/FlareSolverr (ghcr.io/flaresolverr/flaresolverr)

v3.3.21

Compare Source

• Add challenge selector to catch reloading page on non-English systems
• Escape values for generated form used in request.post. Thanks @​mynameisbogdan

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[bloopy-boi]

Path: cluster/apps/networking/flaresolverr/helm-release.yaml

No changes in detected in resources

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🦙 MegaLinter status: ✅ SUCCESS

Descriptor	Linter	Files	Fixed	Errors	Elapsed time
✅ COPYPASTE	jscpd	yes		no	1.05s
✅ YAML	prettier	1	0	0	0.51s
✅ YAML	yamllint	1		0	0.23s

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