Update yew requirement from 0.20 to 0.21

Updates the requirements on [yew](https://github.com/yewstack/yew) to permit the latest version.
- [Release notes](https://github.com/yewstack/yew/releases)
- [Changelog](https://github.com/yewstack/yew/blob/master/CHANGELOG.md)
- [Commits](yewstack/yew@yew-v0.20.0...yew-v0.21.0)

---
updated-dependencies:
- dependency-name: yew
  dependency-type: direct:production
...

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

examples/benchmarks/Cargo.toml

@@ -8,7 +8,7 @@ publish = false
 [dependencies]
 log = "0.4.17"
 console_log = { version = "1.0.0", features = ["color"] }
-yew = { version = "0.20", features = ["csr"] }
+yew = { version = "0.21", features = ["csr"] }
 stylist = { path = "../../packages/stylist", features = [
     "yew_integration",
     "parser",

examples/use-media-query/Cargo.toml

@@ -8,7 +8,7 @@ publish = false
 [dependencies]
 log = "0.4.17"
 console_log = { version = "1.0.0", features = ["color"] }
-yew = { version = "0.20", features = ["csr"] }
+yew = { version = "0.21", features = ["csr"] }
 stylist = { path = "../../packages/stylist", features = [
     "yew_integration",
     "yew_use_media_query",

examples/yew-integration/Cargo.toml

@@ -8,7 +8,7 @@ publish = false
 [dependencies]
 log = "0.4.17"
 console_log = { version = "1.0.0", features = ["color"] }
-yew = { version = "0.20", features = ["csr"] }
+yew = { version = "0.21", features = ["csr"] }
 stylist = { path = "../../packages/stylist", features = ["yew_integration"] }
 
 [dev-dependencies]

examples/yew-proc-macros/Cargo.toml

@@ -8,7 +8,7 @@ publish = false
 [dependencies]
 log = "0.4.17"
 console_log = { version = "1.0.0", features = ["color"] }
-yew = { version = "0.20", features = ["csr"] }
+yew = { version = "0.21", features = ["csr"] }
 stylist = { path = "../../packages/stylist", default-features = false, features = [
     "yew_integration",
     "macros",

examples/yew-shadow/Cargo.toml

@@ -8,7 +8,7 @@ publish = false
 [dependencies]
 log = "0.4.17"
 console_log = { version = "1.0.0", features = ["color"] }
-yew = { version = "0.20", features = ["csr"] }
+yew = { version = "0.21", features = ["csr"] }
 stylist = { path = "../../packages/stylist", features = ["yew_integration"] }
 once_cell = "1.16.0"
 

examples/yew-ssr/Cargo.toml

@@ -16,7 +16,7 @@ required-features = ["ssr"]
 [dependencies]
 log = "0.4.17"
 console_log = { version = "1.0.0", features = ["color"] }
-yew = { version = "0.20" }
+yew = { version = "0.21" }
 stylist = { path = "../../packages/stylist", features = ["yew_integration"] }
 
 [target.'cfg(not(target_arch = "wasm32"))'.dependencies]
@@ -30,7 +30,7 @@ gloo-utils = "0.2.0"
 gloo-timers = { version = "0.3.0", features = ["futures"] }
 wasm-bindgen-test = "0.3.33"
 wasm-bindgen = "0.2.83"
-yew = { version = "0.20", features = ["csr", "ssr", "hydration"] }
+yew = { version = "0.21", features = ["csr", "ssr", "hydration"] }
 stylist = { path = "../../packages/stylist", features = ["yew_integration", "ssr", "hydration"] }
 
 [dev-dependencies.web-sys]

examples/yew-theme-context/Cargo.toml

@@ -8,7 +8,7 @@ publish = false
 [dependencies]
 log = "0.4.17"
 console_log = { version = "1.0.0", features = ["color"] }
-yew = { version = "0.20", features = ["csr"] }
+yew = { version = "0.21", features = ["csr"] }
 stylist = { path = "../../packages/stylist", features = ["yew_integration"] }
 once_cell = "1.16.0"
 

examples/yew-theme-hooks/Cargo.toml

@@ -8,7 +8,7 @@ publish = false
 [dependencies]
 log = "0.4.17"
 console_log = { version = "1.0.0", features = ["color"] }
-yew = { version = "0.20", features = ["csr"] }
+yew = { version = "0.21", features = ["csr"] }
 stylist = { path = "../../packages/stylist", features = [
     "yew_integration",
     "yew_use_style",

packages/stylist/Cargo.toml

@@ -25,7 +25,7 @@ stylist-macros = { path = "../stylist-macros", version = "0.12", optional = true
 
 once_cell = "1.16.0"
 wasm-bindgen = "0.2.83"
-yew = { version = "0.20", optional = true, default-features = false }
+yew = { version = "0.21", optional = true, default-features = false }
 gloo-events = { version = "0.2.0", optional = true }
 fastrand = { version = "2.0.0", optional = true }
 instant = { version = "0.1.12", optional = true, features = ["wasm-bindgen"] }
@@ -47,7 +47,7 @@ features = [
 log = "0.4.17"
 env_logger = "0.10.0"
 trybuild = "1.0.72"
-yew = "0.20"
+yew = "0.21"
 rustversion = "1"
 
 [features]