Update dependency scheb/2fa-google-authenticator to v6.8.0

This MR contains the following updates:

Package	Type	Update	Change
scheb/2fa-google-authenticator (source)	require	minor	6.6.0 -> 6.8.0

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Release Notes

scheb/2fa-google-authenticator

v6.8.0

Compare Source

v6.7.0

Compare Source

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