Remove whitespace

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

Author: simsurace

test/parameters_matrix.jl

@@ -37,7 +37,7 @@ using ParameterHandling: vec_to_tril, tril_to_vec
         @test vec_to_tril(X.L) ≈ cholesky(X_mat).L
 
         # Zeroing the unconstrained value preserve positivity
-        X.L .= 0 
+        X.L .= 0
         @test isposdef(value(X))
 
         # Check that zeroing the unconstrained value does not affect the original array