Bump crossterm from 0.19.0 to 0.20.0

Bumps [crossterm](https://github.com/crossterm-rs/crossterm) from 0.19.0 to 0.20.0.
- [Release notes](https://github.com/crossterm-rs/crossterm/releases)
- [Changelog](https://github.com/crossterm-rs/crossterm/blob/master/CHANGELOG.md)
- [Commits](https://github.com/crossterm-rs/crossterm/compare/0.19...0.20)

---
updated-dependencies:
- dependency-name: crossterm
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

4 files changed, 21 insertions, 11 deletions

diff --git a/Cargo.lock b/Cargo.lock
index 1985bea6..02a981be 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -89,26 +89,26 @@ dependencies = [
 
 [[package]]
 name = "crossterm"
-version = "0.19.0"
+version = "0.20.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7c36c10130df424b2f3552fcc2ddcd9b28a27b1e54b358b45874f88d1ca6888c"
+checksum = "c0ebde6a9dd5e331cd6c6f48253254d117642c31653baa475e394657c59c1f7d"
 dependencies = [
  "bitflags",
  "crossterm_winapi",
  "futures-core",
- "lazy_static",
  "libc",
  "mio",
  "parking_lot",
  "signal-hook",
+ "signal-hook-mio",
  "winapi",
 ]
 
 [[package]]
 name = "crossterm_winapi"
-version = "0.7.0"
+version = "0.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0da8964ace4d3e4a044fd027919b2237000b24315a37c916f61809f1ff2140b9"
+checksum = "3a6966607622438301997d3dac0d2f6e9a90c68bb6bc1785ea98456ab93c0507"
 dependencies = [
  "winapi",
 ]
@@ -777,16 +777,26 @@ dependencies = [
 
 [[package]]
 name = "signal-hook"
-version = "0.1.17"
+version = "0.3.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7e31d442c16f047a671b5a71e2161d6e68814012b7f5379d269ebd915fac2729"
+checksum = "470c5a6397076fae0094aaf06a08e6ba6f37acb77d3b1b91ea92b4d6c8650c39"
 dependencies = [
  "libc",
- "mio",
  "signal-hook-registry",
 ]
 
 [[package]]
+name = "signal-hook-mio"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "29fd5867f1c4f2c5be079aee7a2adf1152ebb04a4bc4d341f504b7dece607ed4"
+dependencies = [
+ "libc",
+ "mio",
+ "signal-hook",
+]
+
+[[package]]
 name = "signal-hook-registry"
 version = "1.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
diff --git a/helix-term/Cargo.toml b/helix-term/Cargo.toml
index 4c650b41..415a40b5 100644
--- a/helix-term/Cargo.toml
+++ b/helix-term/Cargo.toml
@@ -28,7 +28,7 @@ once_cell = "1.4"
 tokio = { version = "1", features = ["full"] }
 num_cpus = "1"
 tui = { path = "../helix-tui", package = "helix-tui", default-features = false, features = ["crossterm"] }
-crossterm = { version = "0.19", features = ["event-stream"] }
+crossterm = { version = "0.20", features = ["event-stream"] }
 
 futures-util = { version = "0.3", features = ["std", "async-await"], default-features = false }
 
diff --git a/helix-tui/Cargo.toml b/helix-tui/Cargo.toml
index 19b2edcb..7ba16553 100644
--- a/helix-tui/Cargo.toml
+++ b/helix-tui/Cargo.toml
@@ -16,5 +16,5 @@ bitflags = "1.0"
 cassowary = "0.3"
 unicode-segmentation = "1.2"
 unicode-width = "0.1"
-crossterm = { version = "0.19", optional = true }
+crossterm = { version = "0.20", optional = true }
 serde = { version = "1", "optional" = true, features = ["derive"]}
diff --git a/helix-view/Cargo.toml b/helix-view/Cargo.toml
index 96b7d9a3..1a103265 100644
--- a/helix-view/Cargo.toml
+++ b/helix-view/Cargo.toml
@@ -18,7 +18,7 @@ helix-lsp = { path = "../helix-lsp"}
 
 # Conversion traits
 tui = { path = "../helix-tui", package = "helix-tui", default-features = false, features = ["crossterm"], optional = true }
-crossterm = { version = "0.19", features = ["event-stream"], optional = true }
+crossterm = { version = "0.20", features = ["event-stream"], optional = true }
 once_cell = "1.4"
 url = "2"