C++: Add new queries in 1.23 to legacy suites

I didn't add `JapaneseEraDate.ql` since it's not displayed on LGTM by
default.

Author: jbj

cpp/config/suites/cpp/correctness

@@ -24,6 +24,8 @@
 + semmlecode-cpp-queries/Likely Bugs/Arithmetic/FloatComparison.ql: /Correctness/Common Errors
 + semmlecode-cpp-queries/Likely Bugs/Arithmetic/BitwiseSignCheck.ql: /Correctness/Common Errors
 + semmlecode-cpp-queries/Likely Bugs/Arithmetic/BadAdditionOverflowCheck.ql: /Correctness/Common Errors
++ semmlecode-cpp-queries/Likely Bugs/Arithmetic/SignedOverflowCheck.ql: /Correctness/Common Errors
++ semmlecode-cpp-queries/Likely Bugs/Memory Management/PointerOverflow.ql: /Correctness/Common Errors
 + semmlecode-cpp-queries/Likely Bugs/NestedLoopSameVar.ql: /Correctness/Common Errors
 + semmlecode-cpp-queries/Likely Bugs/UseInOwnInitializer.ql: /Correctness/Common Errors
 + semmlecode-cpp-queries/Critical/NewArrayDeleteMismatch.ql: /Correctness/Common Errors