refactor: refactor tests to replace RIBP references with APB4 equivalents

- Updated test files to change instances of ribp_if to apb4_if in various test cases, ensuring consistency with the new APB4 interface.
- Modified assertions and checks in tests to reflect the new APB4 naming conventions, including changes in expected output and input files.
- Adjusted the test descriptions to accurately represent the APB4 functionality being tested, particularly in timer, UART, and GPIO tests.
- Ensured that all relevant paths and file names in the tests are updated to point to the new APB4 implementations, maintaining the integrity of the test suite.

scripts/parse_performance_log.py

@@ -20,13 +20,13 @@ REQUIRED_FIELDS = {
     "checksum",
     "cycles",
     "mgmt_wait",
-    "ribp_wait",
+    "apb4_wait",
     "sdram_wait",
     "psram_wait",
     "flash_wait",
     "dma_wait",
 }
-TOKEN = re.compile(r"([a-z_]+)=([^\s]+)")
+TOKEN = re.compile(r"([a-z0-9_]+)=([^\s]+)")
 
 
 def parse_number(value: str) -> int: