Bump github.com/hashicorp/aws-sdk-go-base from 0.4.0 to 0.5.0

[dependabot-preview]

Bumps github.com/hashicorp/aws-sdk-go-base from 0.4.0 to 0.5.0.

Changelog

Sourced from github.com/hashicorp/aws-sdk-go-base's changelog.

v0.5.0 (June 4, 2020)

BREAKING CHANGES

• Credential ordering has changed from static, environment, shared credentials, EC2 metadata, default AWS Go SDK (shared configuration, web identity, ECS, EC2 Metadata) to static, environment, shared credentials, default AWS Go SDK (shared configuration, web identity, ECS, EC2 Metadata). #20
• The AWS_METADATA_TIMEOUT environment variable no longer has any effect as we now depend on the default AWS Go SDK EC2 Metadata client timeout of one second with two retries. #20 / #44

ENHANCEMENTS

• Always enable AWS shared configuration file support (no longer require AWS_SDK_LOAD_CONFIG environment variable) #38
• Automatically expand ~ prefix for home directories in shared credentials filename handling #40
• Support assume role duration, policy ARNs, tags, and transitive tag keys via configuration #39
• Add CannotAssumeRoleError and NoValidCredentialSourcesError error types with helpers #42

BUG FIXES

• Properly use custom STS endpoint during AssumeRole API calls triggered by Terraform AWS Provider and S3 Backend configurations #32
• Properly use custom EC2 metadata endpoint during API calls triggered by fallback credentials lookup #32
• Prefer shared configuration handling over EC2 metadata #20
• Prefer ECS credentials over EC2 metadata #20
• Remove hardcoded AWS Provider messaging in error messages #31 / #42

Commits

• a372308 Set v0.5.0 release date in CHANGELOG
• 8a8940f Clarify #20 breaking change entry after #44
• 2907a7c Update CHANGELOG for #44
• 80329fe Fix SkipMetadataApiCheck and remove now extraneous GetCredentialsFromMetadata...
• 88efb0a Update CHANGELOG for #31 / #42
• d39283b Introduce Go 1.13 compatible error types (#42)
• 54bff5e Mock and verify Web Identity Token support (STS AssumeRoleWithWebIdentity) (#41)
• 0bf1934 Update CHANGELOG for #39
• 5659c74 Implement configuration assume role duration, policy ARNs, tags, and transiti...
• e4bc6c2 Update CHANGELOG for #40
• Additional commits viewable in compare view

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@dependabot rebase