Bump taskchampion from 0.9.0 to 1.0.0 (GothenburgBitFactory#3722)

* Bump taskchampion from 0.9.0 to 1.0.0

Bumps [taskchampion](https://github.com/GothenburgBitFactory/taskchampion) from 0.9.0 to 1.0.0.
- [Release notes](https://github.com/GothenburgBitFactory/taskchampion/releases)
- [Commits](GothenburgBitFactory/taskchampion@v0.9.0...v1.0.0)

---
updated-dependencies:
- dependency-name: taskchampion
  dependency-type: direct:production
  update-type: version-update:semver-major
...

* Bump MSRV

* update url to address RUSTSEC-2024-0421

---------

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Dustin J. Mitchell <[email protected]>

.github/workflows/checks.yml

@@ -32,7 +32,7 @@ jobs:
           # If this version is old enough to cause errors, or older than the
           # TaskChampion MSRV, bump it to the MSRV of the currently-required
           # TaskChampion package; if necessary, bump that version as well.
-          toolchain: "1.73.0" # MSRV
+          toolchain: "1.78.0" # MSRV
           override: true
 
       - uses: actions-rs/[email protected]

.github/workflows/tests.yaml

@@ -119,7 +119,7 @@ jobs:
           # TaskChampion MSRV, bump it to the MSRV of the currently-required
           # TaskChampion package; if necessary, bump that version as well.
           # This should match the MSRV in `src/taskchampion-cpp/Cargo.toml`.
-          toolchain: "1.73.0" # MSRV
+          toolchain: "1.78.0" # MSRV
           override: true
 
       - uses: actions-rs/[email protected]