build(deps): bump github.com/opentracing/opentracing-go from 1.1.0 to 1.2.0

[dependabot]

Bumps github.com/opentracing/opentracing-go from 1.1.0 to 1.2.0.

Release notes

Sourced from github.com/opentracing/opentracing-go's releases.

Release 1.2.0

• Use error.object per OpenTracing Semantic Conventions (#179) -- Rahman Syed
• Convert nil pointer log field value to string "nil" (#230) -- Cyril Tovena
• Add Go module support (#215) -- Zaba505
• Make SetTag helper types in ext public (#229) -- Blake Edwards
• Add log/fields helpers for keys from specification (#226) -- Dmitry Monakhov
• Improve noop impementation (#223) -- chanxuehong
• Add an extension to Tracer interface for custom go context creation (#220) -- Krzesimir Nowak
  • Restore the ability to reset the current span in context to nil (#231) -- Yuri Shkuro
• Fix typo in comments (#222) -- meteorlxy
• Improve documentation for log.Object() to emphasize the requirement to pass immutable arguments (#219) -- 疯狂的小企鹅
• [mock] Return ErrInvalidSpanContext if span context is not MockSpanContext (#216) -- Milad Irannejad

Changelog

Sourced from github.com/opentracing/opentracing-go's changelog.

1.2.0 (2020-07-01)

• Restore the ability to reset the current span in context to nil (#231) -- Yuri Shkuro
• Use error.object per OpenTracing Semantic Conventions (#179) -- Rahman Syed
• Convert nil pointer log field value to string "nil" (#230) -- Cyril Tovena
• Add Go module support (#215) -- Zaba505
• Make SetTag helper types in ext public (#229) -- Blake Edwards
• Add log/fields helpers for keys from specification (#226) -- Dmitry Monakhov
• Improve noop impementation (#223) -- chanxuehong
• Add an extension to Tracer interface for custom go context creation (#220) -- Krzesimir Nowak
• Fix typo in comments (#222) -- meteorlxy
• Improve documentation for log.Object() to emphasize the requirement to pass immutable arguments (#219) -- 疯狂的小企鹅
• [mock] Return ErrInvalidSpanContext if span context is not MockSpanContext (#216) -- Milad Irannejad

Commits

• d34af3e Prepare release 1.2.0
• 0dc5613 Use Go 1.14 in go.mod (#234)
• 9b90650 Restore the ability to reset the current span in context to nil (#231)
• 0dfafac OpenTracing Semantic Conventions uses error.object (#179)
• 2876d20 Convert nil pointer log field value to string "nil" (#230)
• cdf3382 Add Go module support (#215)
• 657cde1 Make SetTag helper types in ext public (#229)
• 17f6344 Add log/fields helpers for keys from specification (#226)
• a7454ce Improve noop impementation (#223)
• 16ba2b6 Add an extension to Tracer interface for custom go context creation (#220)
• Additional commits viewable in compare view

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