release: 0.3.0 (#11)

### Description

This PR introduces support for service dependency syncing and
automatically creating Backstage integrations in PagerDuty for all new
mappings.

With these changes, we are reducing the manual effort on configuring
integration keys and service dependencies into Backstage configuration
files and ensuring they stay in-sync with PagerDuty.

‼️ **Important**: Due to a Backstage design decision it is not possible
to fully overwrite the relations specified in each entity's
configuration file. For that reason the option to synchronise strictly
from PagerDuty side is not available.

## Acknowledgement

By submitting this pull request, I confirm that you can use, modify,
copy, and redistribute this contribution, under the terms of your
choice.

**Disclaimer:** We value your time and bandwidth. As such, any pull
requests created on non-triaged issues might not be successful.

backstage.json

@@ -1,3 +1,3 @@
 {
-  "version": "1.25.2"
+  "version": "1.29.2"
 }

package.json

@@ -10,7 +10,9 @@
     "types": "dist/index.d.ts"
   },
   "backstage": {
-    "role": "backend-plugin-module"
+    "role": "backend-plugin-module",
+    "pluginId": "catalog",
+    "pluginPackage": "pagerduty-entity-processor"
   },
   "homepage": "https://pagerduty.github.io/backstage-plugin-docs/index.html",
   "repository": {
@@ -31,21 +33,22 @@
     "postpack": "backstage-cli package postpack"
   },
   "dependencies": {
-    "@backstage/backend-common": "^0.21.6",
-    "@backstage/backend-defaults": "^0.2.16",
-    "@backstage/backend-plugin-api": "^0.6.20",
+    "@backstage/backend-common": "^0.23.3",
+    "@backstage/backend-defaults": "^0.4.1",
+    "@backstage/backend-plugin-api": "^0.7.0",
     "@backstage/catalog-model": "^1.5.0",
     "@backstage/config": "^1.2.0",
-    "@backstage/plugin-catalog-node": "^1.12.2",
-    "@pagerduty/backstage-plugin-common": "0.2.0",
+    "@backstage/plugin-catalog-common": "^1.0.25",
+    "@backstage/plugin-catalog-node": "^1.12.4",
+    "@pagerduty/backstage-plugin-common": "0.2.1",
     "@rjsf/core": "^5.14.3",
     "node-fetch": "^2.6.7",
     "winston": "^3.2.1",
     "yn": "^4.0.0",
     "zod": "^3.22.4"
   },
   "devDependencies": {
-    "@backstage/cli": "^0.24.0",
+    "@backstage/cli": "^0.26.11",
     "@types/node": "^20.9.2",
     "@types/node-fetch": "2.6.11",
     "@types/supertest": "^2.0.12",