fix: Correctly handle raw-codec CIDs/blocks

[matheus23]

Major things in this PR:

• Correctly handle raw-codec CIDs/blocks, they were previously not transferred due to a bug in IncrementalDagVerification.
• Update wnfs-common to 0.1.26 so this crate is compatible with the latest rs-wnfs.
• Introduce another cache, a positive cache for checking if we already have a block. (Work on Performance: Implement Caching #28)
• Make sure the main request/response futures are Send

[codecov]

Codecov Report

Attention: 46 lines in your changes are missing coverage. Please review.

Comparison is base (cb57d41) 48.60% compared to head (8d0c5c0) 49.51%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #37      +/-   ##
==========================================
+ Coverage   48.60%   49.51%   +0.90%     
==========================================
  Files          13       13              
  Lines         467      511      +44     
  Branches      216      244      +28     
==========================================
+ Hits          227      253      +26     
+ Misses         65       60       -5     
- Partials      175      198      +23     

Files	Coverage Δ
car-mirror/src/lib.rs	100.00% <ø> (ø)
car-mirror/src/pull.rs	68.42% <ø> (ø)
car-mirror/src/push.rs	68.42% <ø> (ø)
car-mirror/src/test_utils/local_utils.rs	42.50% <ø> (ø)
car-mirror/src/test_utils/blockstore_utils.rs	35.71% <0.00%> (-2.75%)	⬇️
car-mirror/src/common.rs	58.63% <54.54%> (+1.26%)	⬆️
car-mirror/src/test_utils/dag_strategy.rs	42.30% <68.75%> (+8.97%)	⬆️
car-mirror/src/incremental_verification.rs	43.20% <35.00%> (+1.67%)	⬆️
car-mirror/src/traits.rs	26.31% <23.07%> (+4.57%)	⬆️