fix: github url

Author: maxday

README.md

@@ -51,13 +51,7 @@ $ cmake .. -DCMAKE_BUILD_TYPE=Debug -DENABLE_TESTS=ON
 $ make
 ```
 
-You can then run unit tests locally:
-
-```bash
-$ ctest -L unit
-```
-
-This will run only the unit tests. If you want to run all tests (including integration tests), you can use:
+Run unit tests:
 ```bash
 $ ctest
 ```

tests/CMakeLists.txt

@@ -5,7 +5,7 @@ project(aws-lambda-runtime-tests LANGUAGES CXX)
 # We're using the latest supported version which supports C++11 (https://github.com/google/googletest/releases/tag/release-1.12.1)
 include(FetchContent)
 FetchContent_Declare(gtest
-    URL https://github.com/google/googletest/archive/v1.12.1.tar.gz
+    URL https://github.com/google/googletest/archive/refs/tags/release-1.12.1.tar.gz
     DOWNLOAD_EXTRACT_TIMESTAMP TRUE
 )
 # Configure build of googletest