feat: update ledger instructions

[hansieodendaal]

Description

Updated the ledger wallet build instructions to ensure it is still current.

Motivation and Context

See above.

How Has This Been Tested?

• nanosplus

  docker run --rm -it -v ".:/app" -w /app/applications/minotari_ledger_wallet/wallet ghcr.io/ledgerhq/ledger-app-builder/ledger-app-builder cargo ledger build stax
  
  Finished release [optimized] target(s) in 37.50s
  text    data     bss     dec     hex filename
  129488       0   11936  141424   22870 /app/applications/minotari_ledger_wallet/wallet/target/nanosplus/release/minotari_ledger_wallet
  Dumping APDU installation file to /app/applications/minotari_ledger_wallet/wallet/target/nanosplus/release/minotari_ledger_wallet.apdu

• stax

  docker run --rm -it -v ".:/app" -w /app/applications/minotari_ledger_wallet/wallet ghcr.io/ledgerhq/ledger-app-builder/ledger-app-builder cargo ledger build stax
  
     Finished release [optimized] target(s) in 15.47s
  text    data     bss     dec     hex filename
  177552       0   21012  198564   307a4 /app/applications/minotari_ledger_wallet/wallet/target/stax/release/minotari_ledger_wallet
  Dumping APDU installation file to /app/applications/minotari_ledger_wallet/wallet/target/stax/release/minotari_ledger_wallet.apdu

What process can a PR reviewer use to test or verify this change?

Breaking Changes

• [x] None
• [ ] Requires data directory on base node to be deleted
• [ ] Requires hard fork
• [ ] Other - Please specify

[github-actions[bot]]

Test Results (CI)

    3 files    129 suites   36m 29s ⏱️ 1 344 tests 1 344 ✅ 0 💤 0 ❌ 4 030 runs  4 030 ✅ 0 💤 0 ❌

Results for commit 67dd7a24.

[github-actions[bot]]

Test Results (Integration tests)

36 tests  +36   36 ✅ +36   15m 23s ⏱️ + 15m 23s 11 suites +11    0 💤 ± 0   2 files   + 2    0 ❌ ± 0 

Results for commit 67dd7a24. ± Comparison against base commit e61b5e2d.