build: remove *tests* and all coverage/DIA DLLs from binskim (#41108)

This thing files about 900 bugs a month on us.

Before:

```
Done. 11,036 files scanned.
```

After:

```
Done. 4,753 files scanned.
```

.pipelines/v2/release.yml

@@ -64,6 +64,10 @@ extends:
       tsa:
         enabled: true
         configFile: '$(Build.SourcesDirectory)\.pipelines\tsa.json'
+      binskim:
+        enabled: true
+        # Exclude every dll/exe in tests/*, as well as all msdia*, covrun* and vcruntime*
+        analyzeTargetGlob: +:file|$(Build.ArtifactStagingDirectory)/**/*.dll;+:file|$(Build.ArtifactStagingDirectory)/**/*.exe;-:file:regex|tests.*\.(dll|exe)$;-:file:regex|(covrun.*)\.dll$;-:file:regex|(msdia.*)\.dll$;-:file:regex|(vcruntime.*)\.dll$
 
     stages:
       - stage: Build