**Description**
The default Grafana chart requests and limits for the `k8s-sidecar`
containers are a bit over the top:
```bash
kubectl resource-capacity --namespace grafana --pods -uc
NODE POD CONTAINER CPU REQUESTS CPU LIMITS CPU UTIL MEMORY REQUESTS MEMORY LIMITS MEMORY UTIL
...
k8s-control-1 grafana-9554bbdd8-ph6vq grafana-alerts 75m (0%) 1500m (10%) 2m (0%) 200Mi (0%) 2400Mi (2%) 272Mi (0%)
k8s-control-1 grafana-9554bbdd8-ph6vq grafana-dashboards 75m (0%) 1500m (10%) 1m (0%) 200Mi (0%) 2400Mi (2%) 275Mi (0%)
k8s-control-1 grafana-9554bbdd8-ph6vq grafana-datasources 75m (0%) 1500m (10%) 1m (0%) 200Mi (0%) 2400Mi (2%) 272Mi (0%)
k8s-control-1 grafana-9554bbdd8-ph6vq grafana-notifiers 75m (0%) 1500m (10%) 1m (0%) 200Mi (0%) 2400Mi (2%) 272Mi (0%)
k8s-control-1 grafana-9554bbdd8-ph6vq grafana-plugins 75m (0%) 1500m (10%) 1m (0%) 200Mi (0%) 2400Mi (2%) 272Mi (0%)
...
```
I have never seen them use more than 10m CPU or go over 300Mi of memory.
So I think it makes sense to assign lower default resources than what
the `common` defaults are.
⚒️ Fixes # <!--(issue)-->
**⚙️ Type of change**
- [ ] ⚙️ Feature/App addition
- [X] 🪛 Bugfix
- [ ] ⚠️ Breaking change (fix or feature that would cause existing
functionality to not work as expected)
- [ ] 🔃 Refactor of current code
- [ ] 📜 Documentation Changes
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**✔️ Checklist:**
- [X] ⚖️ My code follows the style guidelines of this project
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astro-stan
64bcd06754