RUSTSEC-2020-0049: Use-after-free in Framed due to lack of pinning

[github-actions]

Use-after-free in Framed due to lack of pinning

Details
Package	actix-codec
Version	0.2.0
URL	actix/actix-net#91
Date	2020-01-30
Patched versions	>= 0.3.0-beta.1

Affected versions of this crate did not require the buffer wrapped in Framed to be pinned,
but treated it as if it had a fixed location in memory. This may result in a use-after-free.

The flaw was corrected by making the affected functions accept Pin<&mut Self> instead of &mut self.

See advisory page for additional details.