bump yew v0.22

[Infinoid]

bump: yew v0.22

[Infinoid]

This is a step towards patternfly-yew/patternfly-yew#161.

Testing:

• cargo check --features=yew passes
• cargo test --features=yew says:

   Compiling web-tools v0.2.3 (/home/infinoid/bounce/web-tools)
    Finished `test` profile [unoptimized + debuginfo] target(s) in 9.33s
     Running unittests src/lib.rs (target/debug/deps/web_tools-f2eddac42bf5123f)

running 0 tests

test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s

   Doc-tests web_tools

running 1 test
test src/lib.rs - (line 9) ... ok

test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.27s