[Async-Backing] Adjust block time target

[DidacSF]

Description

Changes the configuration to reach 6s block times through increasing processing velocity instead of reducing block times

Type of changes

• build: Changes that affect the build system or external dependencies (eg, Cargo, Docker)
• ci: Changes to CI configuration
• docs: Changes to documentation only
• feat: Changes to add a new feature
• fix: Changes to fix a bug
• refactor: Changes that do not alter functionality
• style: Changes to format the code
• test: Changes to add missing tests or correct existing tests

Checklist

• Tests for the changes have been added
• Necessary documentation is added (if appropriate)
• Formatted with cargo fmt --all
• Linted with cargo clippy --all-features --all-targets
• Tested with cargo test --workspace --all-features --all-targets

[codecov]

Codecov Report

Attention: 112 lines in your changes are missing coverage. Please review.

Comparison is base (210f36d) 74.97% compared to head (c8dcb2c) 75.57%.
Report is 34 commits behind head on develop.

Files	Patch %	Lines
pallets/ajuna-awesome-avatars/src/migration/v5.rs	0.00%	62 Missing ⚠️
pallets/ajuna-nft-staking/src/lib.rs	70.00%	33 Missing ⚠️
pallets/ajuna-nft-staking/benchmarking/src/lib.rs	0.00%	8 Missing ⚠️
pallets/ajuna-nft-transfer/src/lib.rs	68.75%	5 Missing ⚠️
...lets/ajuna-awesome-avatars/src/types/avatar/nft.rs	88.00%	3 Missing ⚠️
pallets/ajuna-nft-staking/src/contracts.rs	94.11%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop     #375      +/-   ##
===========================================
+ Coverage    74.97%   75.57%   +0.59%     
===========================================
  Files           33       33              
  Lines         3421     3517      +96     
===========================================
+ Hits          2565     2658      +93     
- Misses         856      859       +3     

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