scripts: west_commands: zspdx: cmakecache: Fix linter issue

Fix redundant open mode.

Signed-off-by: Pieter De Gendt <pieter.degendt@basalte.be>

.ruff-excludes.toml

@@ -1190,9 +1190,6 @@
     "UP015",    # https://docs.astral.sh/ruff/rules/redundant-open-modes
     "UP032",    # https://docs.astral.sh/ruff/rules/f-string
 ]
-"./scripts/west_commands/zspdx/cmakecache.py" = [
-    "UP015",    # https://docs.astral.sh/ruff/rules/redundant-open-modes
-]
 "./scripts/west_commands/zspdx/cmakefileapi.py" = [
     "F541",     # https://docs.astral.sh/ruff/rules/f-string-missing-placeholders
     "I001",     # https://docs.astral.sh/ruff/rules/unsorted-imports

scripts/west_commands/zspdx/cmakecache.py

@@ -11,7 +11,7 @@ def parseCMakeCacheFile(filePath):
     log.dbg(f"parsing CMake cache file at {filePath}")
     kv = {}
     try:
-        with open(filePath, "r") as f:
+        with open(filePath) as f:
             # should be a short file, so we'll use readlines
             lines = f.readlines()