Bump pdf-reader from 2.14.1 to 2.15.0

Bumps [pdf-reader](https://github.com/yob/pdf-reader) from 2.14.1 to 2.15.0.
- [Changelog](https://github.com/yob/pdf-reader/blob/main/CHANGELOG)
- [Commits](yob/pdf-reader@v2.14.1...v2.15.0)

---
updated-dependencies:
- dependency-name: pdf-reader
  dependency-version: 2.15.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

Gemfile.lock

@@ -75,7 +75,7 @@ GEM
       uri (>= 0.13.1)
     addressable (2.8.7)
       public_suffix (>= 2.0.2, < 7.0)
-    afm (0.2.2)
+    afm (1.0.0)
     annotaterb (4.20.0)
       activerecord (>= 6.0.0)
       activesupport (>= 6.0.0)
@@ -470,9 +470,9 @@ GEM
       ast (~> 2.4.1)
       racc
     pdf-core (0.9.0)
-    pdf-reader (2.14.1)
+    pdf-reader (2.15.0)
       Ascii85 (>= 1.0, < 3.0, != 2.0.0)
-      afm (~> 0.2.1)
+      afm (>= 0.2.1, < 2)
       hashery (~> 2.0)
       ruby-rc4
       ttfunk