Bump github.com/spf13/viper from 1.4.0 to 1.6.3

[dependabot-preview[bot]]

Bumps github.com/spf13/viper from 1.4.0 to 1.6.3.

Release notes

Sourced from github.com/spf13/viper's releases.

v1.6.3

Fixes uninstallable library on clean GOPATH

Fix extensionless config lookup

This is a patch release fixing a(n edge case) bug introduced in v1.6.0

See #818 and #827 for details

Fix config path lookup

This is a patch release fixing a bug introduced in v1.6.0

v1.6.0

Changes

Added

• Global UnmarshalExact method
• StringReplacer interface for custom environment key replacing logic
• GolangCI Lint
• INI support
• Key delimiter made configurable
• Support for config files without extensions

Changed

• Moved to GitHub actions build from Travis

Fixed

• IsSet no longer returns true when an unset key has a flags bound
• SafeWriteConfigAs works as expected

Happy Holidays!

v1.5.0

Documentation and other fixes

Commits

• 59b1917 Update etcd to 3.3.13
• 4525543 Improve CI
• 9cd5712 Extensionless files only allowed when config type is set (#827)
• 06ab5a4 Add documentation about unmarshaling into embedded structs
• eabbc68 Fix file path lookup
• 5ad4bc0 Add decoder opts to unmarshal exact
• bcb420b Add global UnmarshalExact method
• 4ad4c8d Add string replacer interface and env key replacer option
• 6fcf985 Fix readme
• bdf2db0 Fix goimports
• Additional commits viewable in compare view

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[dependabot-preview[bot]]

Superseded by #225.