Parallel Inclusion of `ensv2` and `subgraph` plugins in Railway ENSIndexers

[shrugs]

• Blue: update the shared env variables for the alpha deployments to include ensv2
  • blue alpha ensv2 plugin disabled in 1.10 due to slowness
• Green: update the shared env variables for the alpha deployments to include ensv2
  • green alpha ensv2 plugin disabled in 1.10 due to slowness
• Green: update the instance env var mapping to use the new ENSINDEXER_SCHEMA_NAME and ENSDB_URL params
• Blue: update blue alpha plugins to include ensv2 again
• Green: update green alpha plugins to include ensv2 again
• update the shared env variables from *_DATABASE_SCHEMA to *_ENSINDEXER_SCHEMA_NAME
• Blue: update Sepolia-v2 RPC URL to be the tenderly private RPC
• example app unset green-specific env

[coderabbitai]

⚠️ Possible Duplicate Issue(s)

• Remove Core Plugin Config Invariant #1728

🔗 Related PRs

#1587 - feat(ci): include ENSNode v2 Sepolia instance in workflows config [merged]
#1611 - Infrastructure updates for Yellow env [merged]
#1730 - Remove Core Plugin Restriction [merged]
#1896 - fix: remove updating of legacy _DATABASE_SCEMA env variables in railway [merged]
#2128 - The unigraph plugin [merged]
#2317 - Update the yellow env config [merged]
#2329 - feat(checkpoint): remote-checkpoint indexing → load → deploy pipeline [merged]

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