Codeowners, PR template and dependabot settings

.github/CODEOWNERS

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+* @dlcs/protagonist-developers

.github/dependabot.yml

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+version: 2
+updates:
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+
+  - package-ecosystem: "nuget"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+
+  - package-ecosystem: "docker"
+    directory: "/"
+    schedule:
+      interval: "weekly"

.github/pull_request_template.md

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+## What does this change?
+
+<!-- A PR should have enough detail to be understandable far in the future. 
+e.g what is the problem/why is the change needed, how does it solve it and any questions or points of discussion.
+Link to any related issues -->
+
+## Database Migration
+
+<!--Does this PR include a database migration? If not, delete this section.
+
+> [!NOTE]
+> Details of migration. What does it change? Is it breaking/non-breaking?
+>
+> - **Migration name:** `migrationname`
+> - **What it does:** (e.g. adds column `foo` to `bar` table, creates index on `baz`)
+> - **Breaking Change?** Yes / No
+-->
+
+## Infrastructure Changes
+
+<!--Are infrastructure changes required (new permissions, queues, storage buckets, etc.)? If not, delete this section.
+
+> [!NOTE]
+> This PR requires infrastructure changes.
+>
+> - **Required:** (list anything that must be in place before or after deploying)
+> - **Optional:** (list anything that enables additional functionality if provisioned)
+-->
+
+## Configuration Changes
+
+<!-- Does this PR require new appConfig values? If not, delete this section.
+
+> [!NOTE]
+> This PR introduces configuration changes.
+>
+> |Service | AppSetting | Required? | Description | Default |
+> |---|---|---|---|---|
+> | Search | `NewSetting` | Y | Example Setting | `null` |
+-->