[ELSA-2022-7519] grafana security, bug fix, and enhancement update

[7.5.15-3]
- resolve CVE-2022-1962 golang: go/parser: stack exhaustion in all Parse* functions
- resolve CVE-2022-1705 golang: net/http: improper sanitization of Transfer-Encoding header
- resolve CVE-2022-32148 golang: net/http/httputil: NewSingleHostReverseProxy - omit X-Forwarded-For not working
- resolve CVE-2022-30631 golang: compress/gzip: stack exhaustion in Reader.Read
- resolve CVE-2022-30630 golang: io/fs: stack exhaustion in Glob
- resolve CVE-2022-30632 golang: path/filepath: stack exhaustion in Glob
- resolve CVE-2022-30635 golang: encoding/gob: stack exhaustion in Decoder.Decode
- resolve CVE-2022-28131 golang: encoding/xml: stack exhaustion in Decoder.Skip
- resolve CVE-2022-30633 golang: encoding/xml: stack exhaustion in Unmarshal

[7.5.15-2]
- resolve CVE-2022-31107 grafana: OAuth account takeover

[7.5.15-1]
- update to 7.5.15 tagged upstream community sources, see CHANGELOG
- resolve CVE-2022-21673 grafana: Forward OAuth Identity Token can allow users to access some data sources
- resolve CVE-2022-21702 grafana: XSS vulnerability in data source handling
- resolve CVE-2022-21703 grafana: CSRF vulnerability can lead to privilege escalation
- resolve CVE-2022-21713 grafana: IDOR vulnerability can lead to information disclosure
- resolve CVE-2021-23648 sanitize-url: XSS
- resolve CVE-2022-21698 prometheus/client_golang: Denial of service using InstrumentHandlerCounter
- declare Node.js dependencies of subpackages
- make vendor and webpack tarballs reproducible