feat: dont allow to create xyk pool if lbp is running

[enthusiastmartin]

No description provided.

[codecov]

Codecov Report

Merging #257 (cd2961f) into master (d7eee2b) will increase coverage by 0.04%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #257      +/-   ##
==========================================
+ Coverage   83.72%   83.76%   +0.04%     
==========================================
  Files          21       21              
  Lines        2101     2107       +6     
==========================================
+ Hits         1759     1765       +6     
  Misses        342      342              

Impacted Files	Coverage Δ
pallets/lbp/src/lib.rs	89.50% <100.00%> (+0.21%)	⬆️

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