Lux: Explicit Parameterization of Deep Neural Networks in Julia

Lux v0.5.15

Diff since v0.5.14

Merged pull requests:

• Bump actions/cache from 3 to 4 (#479) (@dependabot[bot])
• Bump codecov/codecov-action from 3 to 4 (#484) (@dependabot[bot])
• Bump peter-evans/create-pull-request from 5 to 6 (#485) (@dependabot[bot])
• Drop 1.6 support + Patches to Fix Tests (#487) (@avik-pal)

Closed issues:

• Training in batches and building gradient as mean of individual gradients (#481)
• No Gradients with respect to parameters using Custom Layers (#483)
• Where is the API doc for activatations (#486)