Delete ZIO.succeedNow

[adamgfraser]

Resolves #7815.

[vigoo]

This will break:

• zio-keeper
• zio-query
• interop-cats
• interop-guava
• interop-rs
• interop-twitter
• zio-json
• zio-http
• zio-optics
• zio-webhooks
• zio-memberlist
• zio-s3
• zio-dynamodb
• zio-redis
• zio-flow
• zio-prelude
• zio-profiling

[jdegoes]

I think we need to keep ZIO.succeedNow to avoid breaking libraries but remove references to it. Libraries can be updated individually and at some point we can delete it.

[adamgfraser]

Submitted pull requests to remove references to it from all libraries:

• ZIO HTTP
• ZIO Prelude
• ZIO JSON
• Interop Cats
• ZIO Query
• ZIO Flow
• ZIO Redis
• Interop Reactive Streams
• ZIO S3
• ZIO DynamoDB
• ZIO Webhooks
• ZIO Profiling
• Interop Monix
• Interop Guava