Update newrelic to version 1.25.3 🚀

[greenkeeperio-bot]

Hello :wave:

:rocket::rocket::rocket:

newrelic just published its new version 1.25.3, which is not covered by your current version range.

If this pull request passes your tests you can publish your software with the latest version of newrelic – otherwise use this branch to work on adaptions and fixes.

Happy fixing and merging :palm_tree:

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The new version differs by 55 commits .

• df0dbcb release: published 1.25.3
• f1ea8fd docs: Updated changelog for v1.25.3
• c530013 style: fixed linting errors
• 8042f18 Track Q's unhandled rejections correctly
• 852b0af release: published 1.25.2
• ff5d71b docs: Updated changelog for v1.25.2
• 5e8f949 instrumentation: added query streaming support to node-mysql
• fd2a94b tests: added tests to cover mysql2
• cd2a976 :memo: Add mysql2 comment
• 94d94cb Support mysql2
• efea1d5 Add instrumentation for Q
• 90762c3 release: published 1.25.1
• f014451 docs: Updated changelog for v1.25.1
• fd5abbc instrumentation: fixed issue with missing port when http server is closed
• 5906862 test: add apt and npm caching for faster builds

There are 55 commits in total. See the full diff.

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