chore(charts): update resource limits (#34568)

**Description**
Updates chart resource limits.

⚒️ Fixes  # 

**⚙️ Type of change**

- [X] ⚙️ Feature/App addition
- [ ] 🪛 Bugfix
- [ ] ⚠️ Breaking change (fix or feature that would cause existing
functionality to not work as expected)
- [ ] 🔃 Refactor of current code
- [ ] 📜 Documentation Changes

**🧪 How Has This Been Tested?**

**📃 Notes:**

**✔️ Checklist:**

- [ ] ⚖️ My code follows the style guidelines of this project
- [ ] 👀 I have performed a self-review of my own code
- [ ] #️⃣ I have commented my code, particularly in hard-to-understand
areas
- [ ] 📄 I have made changes to the documentation
- [ ] 🧪 I have added tests to this description that prove my fix is
effective or that my feature works
- [ ] ⬆️ I increased versions for any altered app according to semantic
versioning
- [X] I made sure the title starts with `feat(chart-name):`,
`fix(chart-name):`, `chore(chart-name):`, `docs(chart-name):` or
`fix(docs):`

**➕ App addition**

If this PR is an app addition please make sure you have done the
following.

- [ ] 🖼️ I have added an icon in the Chart's root directory called
`icon.png`

---

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---------

Signed-off-by: Kjeld Schouten <info@kjeldschouten.nl>
Co-authored-by: Kjeld Schouten <info@kjeldschouten.nl>

charts/stable/audiobookshelf/values.yaml

@@ -43,3 +43,11 @@ persistence:
   metadata:
     enabled: true
     mountPath: /metadata
+
+resources:
+  limits:
+    cpu: 500m
+    memory: 750Mi
+  requests:
+    cpu: 50m
+    memory: 125Mi