Bump perl from 5.32-threaded to 5.38-threaded

Bumps perl from 5.32-threaded to 5.38-threaded.

---
updated-dependencies:
- dependency-name: perl
  dependency-type: direct:production
...

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

Dockerfile

@@ -1,4 +1,4 @@
-FROM perl:5.32-threaded
+FROM perl:5.38-threaded
 
 COPY . /usr/src/spellbook
 WORKDIR /usr/src/spellbook