Update thiserror requirement from 1.0 to 2.0

Updates the requirements on [thiserror](https://github.com/dtolnay/thiserror) to permit the latest version.
- [Release notes](https://github.com/dtolnay/thiserror/releases)
- [Commits](https://github.com/dtolnay/thiserror/compare/1.0.0...2.0.17)

---
updated-dependencies:
- dependency-name: thiserror
  dependency-version: 2.0.17
  dependency-type: direct:production
...

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

.github/workflows/coverage.yml

@@ -29,7 +29,7 @@ jobs:
         run: cargo llvm-cov --all-features --workspace --lcov --output-path lcov.info
 
       - name: Upload to codecov.io
-        uses: codecov/codecov-action@v5
+        uses: codecov/codecov-action@v3
         with:
           files: lcov.info
           fail_ci_if_error: false

Cargo.toml

@@ -33,7 +33,7 @@ regex = "1.10"
 
 # Error handling
 anyhow = "1.0"
-thiserror = "1.0"
+thiserror = "2.0"
 
 # Utilities
 itertools = "0.12"