fix(download): body download range

[rkrasiuk]

Fix the logic around reset of the download range and terminating conditions for query_headers function:

• Download range end was not taken into account when downloading blocks. (because it's exclusive, duh)
• Last request_range in set_download_range was not actually added to the queue
• The request ranges had a faulty logic where the start of the range was initialized and the end wasn't resulting in erroneous ranges (e.g. 123..0)
• StageError::Download is now considered fatal

[codecov-commenter]

Codecov Report

Merging #1065 (79b7dc3) into main (4a5a1db) will increase coverage by 0.07%.
The diff coverage is 71.42%.

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@@            Coverage Diff             @@
##             main    #1065      +/-   ##
==========================================
+ Coverage   75.13%   75.21%   +0.07%     
==========================================
  Files         313      313              
  Lines       34305    34299       -6     
==========================================
+ Hits        25776    25797      +21     
+ Misses       8529     8502      -27     

Flag	Coverage Δ
unit-tests	75.21% <71.42%> (+0.07%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
crates/stages/src/error.rs	57.14% <ø> (ø)
crates/net/downloaders/src/bodies/concurrent.rs	88.01% <71.42%> (+1.14%)	⬆️
crates/stages/src/stages/bodies.rs	92.74% <0.00%> (-0.22%)	⬇️
crates/net/network/src/peers/manager.rs	83.39% <0.00%> (-0.19%)	⬇️
crates/net/network/src/manager.rs	48.20% <0.00%> (+0.19%)	⬆️
crates/transaction-pool/src/pool/txpool.rs	59.32% <0.00%> (+0.50%)	⬆️
crates/net/eth-wire/src/capability.rs	63.10% <0.00%> (+0.97%)	⬆️
crates/net/network/src/listener.rs	83.72% <0.00%> (+2.32%)	⬆️
crates/transaction-pool/src/test_utils/mock.rs	59.70% <0.00%> (+6.59%)	⬆️

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