Fix macOS install_name_tool header padding error

Replace post-link install_name_tool calls with -Wl,-rpath flags during linking to avoid Mach-O header space issues on macos-latest-large runners.

Author: Lucas McDonald

tests/TestVectors/Makefile

@@ -1,14 +1,14 @@
 test_vectors: *.cpp *.h
 	g++ -g -ggdb --std=c++17 -o test_vectors -I../../include/ \
+	-Wl,-rpath,../../build-aws-encryption-sdk-c/Debug/ \
+	-Wl,-rpath,../../build-aws-encryption-sdk-c/aws-encryption-sdk-cpp/Debug/ \
+	-Wl,-rpath,../../install/lib/ \
 	base64.cpp do_decrypt.cpp do_encrypt.cpp parse_encrypt.cpp parse_keys.cpp test_vectors.cpp \
 	-I/opt/homebrew/include/ -L/opt/homebrew/lib/ \
 	-I../../install/include/ -L../../install/lib/ -I ../../aws-encryption-sdk-cpp/include/ \
 	../../build-aws-encryption-sdk-c/Debug/libaws-encryption-sdk.dylib \
 	../../build-aws-encryption-sdk-c/aws-encryption-sdk-cpp/Debug/libaws-encryption-sdk-cpp.dylib \
 	-laws-cpp-sdk-core -laws-cpp-sdk-kms -laws-c-common -lcrypto
-	install_name_tool -add_rpath ../../build-aws-encryption-sdk-c/Debug/ test_vectors
-	install_name_tool -add_rpath ../../build-aws-encryption-sdk-c/aws-encryption-sdk-cpp/Debug/ test_vectors
-	install_name_tool -add_rpath ../../install/lib/ test_vectors
 
 test_vectors_unix: *.cpp *.h
 	g++ -g -ggdb --std=c++17 -o test_vectors -I../../include/ \