Update dependencies with Renovate (#148)

Author: basil

.github/dependabot.yml

@@ -0,0 +1,34 @@
+{
+  "$schema": "https://docs.renovatebot.com/renovate-schema.json",
+  "extends": [
+    "config:recommended",
+    ":semanticCommitsDisabled",
+    "schedule:daily"
+  ],
+  "labels": [
+    "dependencies"
+  ],
+  "customManagers": [
+    {
+      "customType": "regex",
+      "fileMatch": [
+        "src/test/java/org/jenkinsci/plugins/reverse_proxy_auth/docker/PlanetExpressTest.java"
+      ],
+      "matchStrings": [
+        ".* TEST_IMAGE =\n\\s*\"(?<repo>.*?):(?<currentValue>.*?)@(?<currentDigest>sha256:.*?)\";\n"
+      ],
+      "depNameTemplate": "{{{repo}}}",
+      "datasourceTemplate": "docker"
+    }
+  ],
+  "rebaseWhen": "conflicted",
+  "ignorePaths": [
+    "**/node_modules/**",
+    "**/bower_components/**",
+    "**/vendor/**",
+    "**/examples/**",
+    "**/__tests__/**",
+    "**/tests/**",
+    "**/__fixtures__/**"
+  ]
+}

.github/renovate.json

@@ -25,7 +25,7 @@
 public class PlanetExpressTest {
 
     static final String TEST_IMAGE =
-            "rroemhild/test-openldap@sha256:b4e433bbcba1f17899d6bcb0a8e854bbe52c754faa4e785d0c27a2b55eb12cd8";
+            "rroemhild/test-openldap:1.0@sha256:b4e433bbcba1f17899d6bcb0a8e854bbe52c754faa4e785d0c27a2b55eb12cd8";
     static final String DN = "dc=planetexpress,dc=com";
     static final String MANAGER_DN = "cn=admin,dc=planetexpress,dc=com";
     static final String MANAGER_SECRET = "GoodNewsEveryone";