Check all backport necessary for v20

[lumtis]

In particular, check the downstream diff with v19

• E2E migration test test(e2e): backport protocol contract v2 migration test #2821
• Solana account fix fix: backport Solana inbound fix #2824
• BTC inscription support feat: backport Bitcoin inscription support  #2825
• ToB audit fixes (only relevant issue addressed in test(e2e): backport protocol contract v2 migration test #2821)
• Cantina fixes (TBD)
• v20 upgrade handlers chore: use v19 binaries in upgrade tests #2689
• Option for inscription (for mainnet) Add option to enable Bitcoin inscription support #2776
• chore: change snapshots API on contrib/localnet/scripts to consume state exports #2819
• fix: register all interfaces in encoding config #2828
• fix(zetaclient): use on-chain chain struct #2834
• chore: bump ethermint #2854