fix: Fix date day calcs, bump deps including TS7. (#75)

v2.5.0 (#73)

* chore: Bump minor version, dev deps.

* chore: Update tsconfig for v6.

* feat: Add length arg to codec.decode (#66).

* chore: Update package.json.

v2.4.0 (#69)

* docs: Update useBigIntTimestamp docs.

* chore: Bump minor version, dev deps.

* chore: Update lockfile.

chore: Bump minor version and dev deps. (#64)

chore: Bump patch version, dev deps, ci. (#59)

* chore: Bump patch version, dev deps, ci.

* chore: Update package-lock.json for node 25.

chore: Bump patch version.

chore: Update deps, bump patch number.

chore: Bump patch version, update dev-deps.

chore: Bump patch version.

chore: Bump patch version.