[clang-tools-extra] [run-clang-tidy.py] Add option to ignore source files from compilation database (PR #82416)

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``````````bash
darker --check --diff -r f740366fa68d3cfceda7efe2d573348253fbb1e9...a3596bf357ef991abcaef04f8811958c0984d9f6 clang-tools-extra/clang-tidy/tool/run-clang-tidy.py
``````````

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View the diff from darker here.
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``````````diff
--- run-clang-tidy.py	2024-02-20 20:11:26.000000 +0000
+++ run-clang-tidy.py	2024-02-20 20:38:39.825570 +0000
@@ -471,11 +471,14 @@
     # Remove source file to be ignored from database.
     if args.source_ignore:
         try:
             source_ignore_re = re.compile(args.source_ignore)
         except:
-            print("Error: unable to compile regex from arg -source-ignore.", file=sys.stderr)
+            print(
+                "Error: unable to compile regex from arg -source-ignore.",
+                file=sys.stderr,
+            )
             sys.exit(1)
         files = {f for f in files if not source_ignore_re.match(f)}
 
     max_task = args.j
     if max_task == 0:

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https://github.com/llvm/llvm-project/pull/82416