Disable pkgsrc due to broken INDEX

Last parsing log:

```
2024-10-02 04:13:57 parsing started
2024-10-02 04:13:57 parsing source INDEX started
2024-10-02 04:13:59   item #2688: ERROR: skipping, unexpected number of fields 14
2024-10-02 04:13:59   go-dnstap (net/go-dnstap): ERROR: homepage: "https://" does not look like an URL
2024-10-02 04:13:59   item #2978: ERROR: skipping, unexpected number of fields 14
2024-10-02 04:14:06   item #14402: ERROR: skipping, unexpected number of fields 9
2024-10-02 04:14:06 parsing source INDEX complete
2024-10-02 04:14:06 ERROR: TooLittlePackages: Unexpectedly small number of packages: 14394 when expected no less than 15000
```

- Format is broken as number of fields is not constant
- INDEX is truncated

repos.d/bsd/pkgsrc.yaml

@@ -66,4 +66,4 @@
       url: 'http://cvsweb.netbsd.org/bsdweb.cgi/pkgsrc/{srcname}/'
     - type: PACKAGE_RECIPE_RAW
       url: 'http://cvsweb.netbsd.org/bsdweb.cgi/~checkout~/pkgsrc/{srcname}/Makefile?content-type=text/plain'
-  groups: [ all, production, pkgsrc ]
+  groups: [ all, pkgsrc ]  # broken INDDEX