Updating the Gradle logo

[lacasseio]

I'm a Gradle engineer simply changing the logo to the new branding. I'm not changing anything else thus I don't see any conflict of interest aside from removing confusion around the brand by avoiding 2 different logos. See the main GitHub organization and website of the project.

Thank you for contributing! Please confirm this pull request meets the following requirements:

• I followed the contributing guidelines: https://github.com/github/explore/blob/master/CONTRIBUTING.md
• I have no affiliation with the project I am suggesting (as a maintainer, creator, contractor, or employee).

Which change are you proposing?

• Suggesting edits to an existing topic or collection
• Curating a new topic or collection

Editing an existing topic or collection

I'm suggesting these edits to an existing topic or collection:

• Image (and my file is *.png, square, dimensions 288x288)
• Content (and my changes are in index.md)

Gradle went through an update of their logos and I'm simply updating each one I come across.

[lacasseio]

@kenyonj The CI failures seems to be related to other repositories going offline/removed/became private/etc. Do you know when there will be a chance to look into the changes?

[talsafran]

@lacasseio thank you for this contribution ✨! I fixed the issues with CI in #800, so this is good to ship too 🚢🍏!

[lacasseio]

Hey @talsafran, thanks for merging this PR. Do you know how long does it take for the change to take effect? I'm still seeing the old logo event though it was merged 2 days ago. Thanks for the information.

[talsafran]

@lacasseio thanks for the ping 😄. Your update should be live now! https://github.com/topics/gradle