[RUSTSEC-2020-0041]: upgrade sized-chunks

[fanatid]

This is tracking issue for bodil/sized-chunks#11 (CI fix with deny.toml submitted in: #3765).

cargo-deny output:

error[RUSTSEC-2020-0041]: Multiple soundness issues in Chunk and InlineArray
    ┌─ /home/kirill/projects/vector/Cargo.lock:368:1
    │
368 │ sized-chunks 0.6.2 registry+https://github.com/rust-lang/crates.io-index
    │ ------------------------------------------------------------------------ security vulnerability detected
    │
    = Chunk:
      
      * Array size is not checked when constructed with `unit()` and `pair()`.
      * Array size is not checked when constructed with `From<InlineArray<A, T>>`.
      * `Clone` and `insert_from` are not panic-safe; A panicking iterator causes memory safety issues with them.
      
      InlineArray:
      
      * Generates unaligned references for types with a large alignment requirement.
    = URL: https://github.com/bodil/sized-chunks/issues/11
    = sized-chunks v0.6.2
      └── im v15.0.0
          └── metrics-runtime v0.13.1
              └── vector v0.11.0

[fanatid]

Ignore rule removed in #4561