Update trufflesecurity/trufflehog Docker tag to v3.81.6

This MR contains the following updates:

Package	Type	Update	Change
trufflesecurity/trufflehog		patch	3.81.5 -> 3.81.6
trufflesecurity/trufflehog	ironbank-docker	patch	3.81.5 -> 3.81.6
trufflesecurity/trufflehog	stage	patch	3.81.5 -> 3.81.6

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Release Notes

trufflesecurity/trufflehog (trufflesecurity/trufflehog)

v3.81.6

Compare Source

What's Changed

• Auth GitHub in Init by @​rosecodym in https://github.com/trufflesecurity/trufflehog/pull/3131
• fix(deps): update module github.com/envoyproxy/protoc-gen-validate to v1.1.0 by @​renovate in https://github.com/trufflesecurity/trufflehog/pull/3176
• Analyze TUI by @​mcastorina in https://github.com/trufflesecurity/trufflehog/pull/3172
• [analyze] Separate SID from token in twilio analyzer by @​mcastorina in https://github.com/trufflesecurity/trufflehog/pull/3177
• [chore] Use custom HTTP client in sendgrid analyzer by @​mcastorina in https://github.com/trufflesecurity/trufflehog/pull/3178
• Improve finegrained token support by @​dustin-decker in https://github.com/trufflesecurity/trufflehog/pull/3179

Full Changelog: https://github.com/trufflesecurity/trufflehog/compare/v3.81.5...v3.81.6

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