Bump hexapdf from 1.0.2 to 1.0.3

Bumps [hexapdf](https://github.com/gettalong/hexapdf) from 1.0.2 to 1.0.3.
- [Changelog](https://github.com/gettalong/hexapdf/blob/master/CHANGELOG.md)
- [Commits](https://github.com/gettalong/hexapdf/commits)

---
updated-dependencies:
- dependency-name: hexapdf
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Gemfile.lock

@@ -68,7 +68,7 @@ GEM
       temple (>= 0.8.2)
       thor
       tilt
-    hexapdf (1.0.2)
+    hexapdf (1.0.3)
       cmdparse (~> 3.0, >= 3.0.3)
       geom2d (~> 0.4, >= 0.4.1)
       openssl (>= 2.2.1)