[release-15.0] collations: fix coercion semantics according to 8.0.31 changes (#11487)#11834

GuptaManan100 merged 1 commit intovitessio:release-15.0vitessio/vitess:release-15.0from

planetscale:collation-coercion-cp-15planetscale/vitess:collation-coercion-cp-15Copy head branch name to clipboard