Exclude bcsl.ts test files from CodeQL code scanning

Fix errors like:

```
lib/galaxy/datatypes/test/test_file3.bcsl.ts#L2C12:12: A parse error
occurred: `';' expected.`. Check the syntax of the file. If the file
is invalid, correct the error or
[exclude](https://docs.github.com/en/code-security/code-scanning/automatically-scanning-your-code-for-vulnerabilities-and-errors/customizing-code-scanning)
the file from analysis.
```

seen in https://github.com/galaxyproject/galaxy/actions/runs/9170180020/job/25211944475 .

.github/codeql/codeql-config.yml

@@ -0,0 +1,2 @@
+paths-ignore:
+  - 'lib/galaxy/datatypes/test/*.bcsl.ts'

.github/workflows/codeql-analysis.yml

@@ -52,6 +52,9 @@ jobs:
           # Details on CodeQL's query packs refer to : https://docs.github.com/en/code-security/code-scanning/automatically-scanning-your-code-for-vulnerabilities-and-errors/configuring-code-scanning#using-queries-in-ql-packs
           # queries: security-extended,security-and-quality
 
+          config-file: ./.github/codeql/codeql-config.yml
+
+
       # Autobuild attempts to build any compiled languages  (C/C++, C#, or Java).
       # If this step fails, then you should remove it and run the build manually (see below)
       - name: Autobuild