Drop OpenAPI 2.0 support, enable validator and dependabot (#15)

* Drop OpenAPI 2.0 support
* Enable belgif-rest-guide-validator-maven-plugin
* Enable dependabot for automatic github-actions and maven upgrades
* Upgrade maven plugin dependencies
* Use string for "${project.version}"

.github/dependabot.yml

@@ -0,0 +1,16 @@
+# Please see the documentation for all configuration options:
+# https://docs.github.com/code-security/dependabot/dependabot-version-updates/configuration-options-for-the-dependabot.yml-file
+version: 2
+updates:
+  - package-ecosystem: "maven"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+    groups:
+      maven:
+        patterns:
+          - "*"
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "weekly"

.github/workflows/dependabot-auto-merge.yml

@@ -0,0 +1,8 @@
+name: dependabot-auto-merge
+on:
+  pull_request:
+    types: [opened]
+jobs:
+  dependabot:
+    uses: belgif/workflows/.github/workflows/dependabot-auto-merge-workflow.yml@main
+    secrets: inherit

pom.xml

@@ -15,10 +15,27 @@
 
 	<build>
 		<plugins>
+			<plugin>
+				<groupId>io.github.belgif.rest.guide.validator</groupId>
+				<artifactId>belgif-rest-guide-validator-maven-plugin</artifactId>
+				<version>2.2.1</version>
+				<executions>
+					<execution>
+						<goals>
+							<goal>validate</goal>
+						</goals>
+					</execution>
+				</executions>
+				<configuration>
+					<files>
+						<file>src/main/openapi/problem/v1/problem-v1.yaml</file>
+					</files>
+				</configuration>
+			</plugin>
 			<plugin>
 				<groupId>org.apache.maven.plugins</groupId>
 				<artifactId>maven-assembly-plugin</artifactId>
-				<version>3.3.0</version>
+				<version>3.7.1</version>
 				<executions>
 					<execution>
 						<id>create-distribution</id>
@@ -29,7 +46,6 @@
 						<configuration>
 							<appendAssemblyId>true</appendAssemblyId>
 							<descriptors>
-								<descriptor>src/main/assembly/swagger.xml</descriptor>
 								<descriptor>src/main/assembly/openapi.xml</descriptor>
 							</descriptors>
 						</configuration>
@@ -39,12 +55,12 @@
 			<plugin>
 				<groupId>org.apache.maven.plugins</groupId>
 				<artifactId>maven-deploy-plugin</artifactId>
-				<version>2.8.2</version>
+				<version>3.1.3</version>
 			</plugin>
 			<plugin>
 				<groupId>org.apache.maven.plugins</groupId>
 				<artifactId>maven-gpg-plugin</artifactId>
-				<version>1.6</version>
+				<version>3.2.7</version>
 				<executions>
 					<execution>
 						<phase>verify</phase>

src/main/openapi/problem/v1/problem-v1.yaml

@@ -1,7 +1,7 @@
 openapi: 3.0.0
 info:
   title: problem types
-  version: ${project.version}
+  version: "${project.version}"
   license:
     name: Apache 2.0
     url: https://www.apache.org/licenses/LICENSE-2.0.html