Don't use in-place normalize

Author: kshyatt

test/testsuite/projections.jl

@@ -1,6 +1,6 @@
 using TestExtras
 using MatrixAlgebraKit: ishermitian
-using LinearAlgebra: Diagonal, normalize!
+using LinearAlgebra: Diagonal, normalize
 
 function test_projections(T::Type, sz; kwargs...)
     summary_str = testargs_summary(T, sz)
@@ -44,7 +44,7 @@ function test_project_antihermitian(
         end
 
         # test approximate error calculation
-        A = normalize!(A)
+        A = normalize(A)
         Ah = project_hermitian(A)
         Aa = project_antihermitian(A)
 
@@ -93,7 +93,7 @@ function test_project_hermitian(
         end
 
         # test approximate error calculation
-        A = normalize!(A)
+        A = normalize(A)
         Ah = project_hermitian(A)
         Aa = project_antihermitian(A)