nodebuilder/tests: Add more test cases for archival blob/block sync

[renaynay]

• Pruning_FN can sync from only pruning_FN/BN.
• Pruning_FN from only archival_FN.
• Archival_FN from archival_FN. There is a test syncing from archival_BN, which is similar but not the same.
• LN can manually request archival and recent blobs from ONLY archival_FN.
• LN can manually request recent blobs from ONLY pruning_FN.

[walldiss]

Full list of cases that needs to be covered to ensure pruned/rachival routing works as intended.

• Archival FN (4)
  • sync outside of sampling window from Archival BN
  • sync outside of sampling window from Archival FN
  • sync inside of sampling window from Archival BN
  • sync inside of sampling window from Archival FN
• Pruned FN (6)
  • same 4 as Archival FN
  • sync inside of sampling window from Pruned BN
  • sync inside of sampling window from Pruned FN
• LN (8)
  • sync inside of sampling window from Archival BN
  • sync inside of sampling window from Archival FN
  • sync inside of sampling window from Pruned BN
  • sync inside of sampling window from Pruned FN
  • request data from Archival BN
  • request data from Archival FN
  • request data from Pruned BN
  • request data from Pruned FN

Multiple test cases can easily covered within same test. For example all tests can be covered if cases are grouped by source of data:

• syncing / requesting from Archival only
• syncing / requesting from Pruned only

[cristaloleg]

For the future readers:

• FN means full node
• BN means bridge node
• LN means light node