Update dependencies and bump MSRV (#578)

* Update  dependencies to their latest versions

* Bump MSRV to 1.73.0

* Update `CHANGELOG.md`

Author: jessebraham

.github/workflows/ci.yml

@@ -112,7 +112,7 @@ jobs:
         with:
           arch: ${{ matrix.platform.arch }}
           target: ${{ matrix.platform.target }}
-          toolchain: "1.70"
+          toolchain: "1.73"
 
       - run: cargo check ${{ matrix.platform.features }}
 

CHANGELOG.md

@@ -40,6 +40,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Created `FlashData`, `FlashDataBuilder` and `FlashSettings` structs to reduce number of input arguments in some functions (#512, #566)
 - `espflash` will now exit with an error if `defmt` is selected but not usable (#524)
 - Unify configuration methods (#551)
+- MSRV bumped to `1.73.0` (#578)
 
 ### Removed