Configure Renovate (#10)

* Add renovate.json

* Adjust renovate.json configuration file.

* Add PULL_REQUEST_TEMPLATE github file.

---------

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: alemoraru <[email protected]>

Author: renovate[bot]

.github/PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,14 @@
+### What changes does this PR introduce?
+
+[//]: # (Please describe the changes this PR introduces and why it should be merged)
+[//]: # (Also, provide relevant motivation and context as to what changed to help reviewers understand this PR)
+[//]: # (If it fixes an open issue, please link to the issue here)
+
+### Checklist
+
+[//]: # (Place an '[x]' (no spaces) in all applicable fields. Please remove unrelated fields.)
+
+- [ ] Check if the target branch for this PR is correct
+- [ ] Update the documentation (if needed)
+- [ ] Tests pass on CI (if present)
+- [ ] Make sure to squash your commits before merge or upon merging!

.github/renovate.json

@@ -0,0 +1,8 @@
+{
+  "$schema": "https://docs.renovatebot.com/renovate-schema.json",
+  "extends": [
+    "config:base"
+  ],
+  "prConcurrentLimit": 3,
+  "labels": ["dependencies"]
+}