Bump gfx-memory from 0.2.0 to 0.2.2

Bumps [gfx-memory](https://github.com/gfx-rs/gfx-extras) from 0.2.0 to 0.2.2.
- [Release notes](https://github.com/gfx-rs/gfx-extras/releases)
- [Changelog](https://github.com/gfx-rs/gfx-extras/blob/master/CHANGELOG.md)
- [Commits](https://github.com/gfx-rs/gfx-extras/commits)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Cargo.lock

@@ -193,12 +193,6 @@ dependencies = [
  "tungstenite",
 ]
 
-[[package]]
-name = "atom"
-version = "0.3.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3c86699c3f02778ec07158376991c8f783dd1f2f95c579ffaf0738dc984b2fe2"
-
 [[package]]
 name = "atomic_refcell"
 version = "0.1.6"
@@ -2097,13 +2091,13 @@ dependencies = [
 
 [[package]]
 name = "gfx-memory"
-version = "0.2.0"
+version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fe8d8855df07f438eb8a765e90356d5b821d644ea3b59b870091450b89576a9f"
+checksum = "dccdda5d2b39412f4ca2cb15c70b5a82783a86b0606f5e985342754c8ed88f05"
 dependencies = [
+ "bit-set",
  "fxhash",
  "gfx-hal",
- "hibitset",
  "log",
  "slab",
 ]
@@ -2635,15 +2629,6 @@ version = "0.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "805026a5d0141ffc30abb3be3173848ad46a1b1664fe632428479619a3644d77"
 
-[[package]]
-name = "hibitset"
-version = "0.6.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "93a1bb8316a44459a7d14253c4d28dd7395cbd23cc04a68c46e851b8e46d64b1"
-dependencies = [
- "atom",
-]
-
 [[package]]
 name = "histogram"
 version = "0.6.9"