fixes gzip decoding issue. (#7940)

fixes gzip decoding issue. (#7940)

* fixes gzip decoding issue.

* [autofix.ci] apply automated fixes

* comment added and handle error more precisely.

* uses +47 range value.

* review change done.

* [autofix.ci] apply automated fixes

* Update mitmproxy/net/encoding.py

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
* tests++

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Co-authored-by: autofix-ci[bot] <114827586+autofix-ci[bot]@users.noreply.github.com>
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
Co-authored-by: Maximilian Hils <git@maximilianhils.com>