Filter out new treasury dispatchables

[librelois]

What does it do?

The 4 new treasury dispatchables can only be used to send non-native tokens. As our current configuration for pallet treasury does not allow this new functionality to be used, we're filtering out these new dispatchables for the time being.

What important points reviewers should know?

Is there something left for follow-up PRs?

What alternative implementations were considered?

Are there relevant PRs or issues in other repositories (Substrate, Polkadot, Frontier, Cumulus)?

What value does it bring to the blockchain users?

[github-actions]

Coverage Report

@@                Coverage Diff                @@
##           master   elois-treasury     +/-   ##
=================================================
  Coverage   81.01%           81.01%   0.00%     
  Files         287              287             
+ Lines       94254            94256      +2     
=================================================
+ Hits        76353            76354      +1     
+ Misses      17901            17902      +1     

Files Changed	Coverage
/runtime/common/src/migrations.rs	90.67% (+1.27%)	🔼
/runtime/moonbase/src/lib.rs	50.66% (-0.07%)	🔽
/runtime/moonbeam/src/lib.rs	47.42% (-0.06%)	🔽
/runtime/moonriver/src/lib.rs	47.41% (-0.06%)	🔽

Coverage generated Tue Jan 2 16:13:04 UTC 2024