Bump graphql-redis-subscriptions from 2.2.1 to 2.5.0 in /backend

Created by: dependabot[bot]

Bumps graphql-redis-subscriptions from 2.2.1 to 2.5.0.

Release notes

Sourced from graphql-redis-subscriptions's releases.

Added support for message buffer

Thanks to @ skabbes for #360 - Added support for message buffer. Please refer to the README to see how to use that with either node-redis or ioredis.

Fixed compiled code in package bundle

IMPORTANT: Do not use v2.3.0 if you want the updated dependencies and Cluster support as the dist folder was mistakenly left out of the version update. Please use this - v2.3.1

Added redis cluster support

IMPORTANT: The published version on NPM was pulled as it does not have the updated features. please use v2.3.1

• Updated dependencies
• Migrated from tslint to eslint
• Migrated from old Istanbul to Nyc for coverage

Thanks to @​arsonik!

Commits

• 520d217 2.5.0
• e338a1b Merge pull request #530 from davidyaha/dependabot/npm_and_yarn/ioredis-5.1.0
• 8db98fb chore: update package-lock.json
• d370b91 Bump ioredis from 4.28.0 to 5.1.0
• 615c5eb chore: update package.json
• b657e67 Update README.md
• 0fc71e6 Merge pull request #392 from iBlueDust/master
• 9478dfa Merge pull request #506 from tibber/feature/deserializer-context-with-docs
• b412078 Merge pull request #507 from fabrykowski/master
• f10d1e6 Merge pull request #511 from davidyaha/dependabot/npm_and_yarn/types/chai-4.3.1
• Additional commits viewable in compare view

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