go: bump github.com/spf13/viper from 1.7.1 to 1.8.0 in /go

[dependabot]

Bumps github.com/spf13/viper from 1.7.1 to 1.8.0.

Release notes

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

v1.8.0

This is a maintenance release primarily containing fixes and improvements. The most prominent change is the etcd update to 3.5.0. Thanks to proper Go modules support, the dependency graph became much smaller.

## Changes

Added

• Allow BindEnv to register multiple environment variables
• Support for accessing slices
• Experimental WASM support: Viper compiles on WASM
• INI load options

Changed

• Ensure BindPFlag detects a nil flag parameter

Fixed

• Merging a key into a nil target
• Panics during saving INI files

Security

• Updated etcd to 3.5 which should make a lot of false positive vulnerability reports disappear

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In addition to the above changes, this release comes with tons of minor improvements, documentation changes an dependency updates. Find more details in the 1.8.0 milestone.

Many thanks to everyone who contributed to this release!

Commits

• faa8ba0 chore: update gotestsum
• 65ee986 chore(lint): fix gofumpt
• 04ef5fa chore: update golangci-lint
• acd965b Add ini load options argument
• 5f4d053 chore(deps): update dependencies
• dd57ae6 chore(deps): update etcd
• cdb5e59 Fix merging a key into a nil target
• 36be6bf feat: make sure Viper compiles on WASM
• 727a41c doc: add a note about concurent Get/Set to godoc
• cb41ae0 doc: discuss concurrency in README
• Additional commits viewable in compare view

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[codecov]

Codecov Report

Merging #4032 (03f39f8) into master (0036da8) will increase coverage by 0.28%.
The diff coverage is 47.16%.

❗ Current head 03f39f8 differs from pull request most recent head 3d867e2. Consider uploading reports for the commit 3d867e2 to get more accurate results

@@            Coverage Diff             @@
##           master    #4032      +/-   ##
==========================================
+ Coverage   66.78%   67.07%   +0.28%     
==========================================
  Files         391      410      +19     
  Lines       38138    42183    +4045     
==========================================
+ Hits        25472    28294    +2822     
- Misses       9017     9903     +886     
- Partials     3649     3986     +337     

Impacted Files	Coverage Δ
go/beacon/api/api.go	38.88% <ø> (ø)
go/common/badger/migrate.go	0.00% <0.00%> (ø)
go/common/crypto/mrae/api/api.go	20.00% <ø> (ø)
...ommon/crypto/signature/signers/file/file_signer.go	52.05% <ø> (ø)
...n/crypto/signature/signers/memory/memory_signer.go	62.85% <0.00%> (-13.01%)	⬇️
go/common/namespace.go	77.77% <ø> (ø)
go/common/sgx/common.go	63.41% <ø> (ø)
go/consensus/api/api.go	14.28% <ø> (ø)
go/common/badger/helpers.go	35.64% <11.94%> (-46.71%)	⬇️
go/beacon/api/grpc.go	17.31% <17.31%> (ø)
... and 230 more

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