Mainnet update for ethereum2-docker-compose

Stereum’s ethereum2-docker-compose for Ethereum 2.0 nodes major update for mainnet

These changes to branch mainnet are major and update should be done with caution! Although tested there can be some update issues. Please read this notes carefully before updating your setup!

Lighthouse:

• update to version 1.1.0
• easier launchpad wallet import
• usage of stereum’s lighthouse docker images (more secure, easier to use)
• environment files changed, please make sure you adapt these to your needs (only needed if you made changes to them before)
• usage of new docker-compose.yaml is necessary!

Lodestar:

• introducing lodestar for mainnet (although not recommended to use it yet for mainnet)

Multiclient:

• usage of stereum’s lighthouse docker image (more secure, easier to use)
• environment files for lighthouse beacon changed, please make sure you adapt these to your needs (only needed if you made changes to them before)
• usage of new docker-compose.yaml is necessary!

Nimbus:

• introducing nimbus for mainnet

Prysm:

• update to version 1.1.0
• optimized for new web-ui
• removed ARM64 support (this should only be temporarily, we work on building images for ARM64)

Teku:

• update to version 20.12.1

If any issues pop up during update we are looking forward to support you on Discord https://discord.gg/8Znj8K6GjN as always!