fix(renovate): fix custom manager patterns to use globs and fix Tini regex

- managerFilePatterns: use glob "Dockerfile" instead of regex /^Dockerfile$/
  (Renovate v37+ uses globs, not /regex/ format)
- Tini regex: fix to handle quoted ENV format ("TINI_VERSION" "v0.19.0")
- SABnzbd: keep as-is (already works)
- par2cmdline: keep as-is (already works)

renovate.json

@@ -4,38 +4,26 @@
     {
       "customType": "regex",
       "description": "Detect SABnzbd release version pin",
-      "managerFilePatterns": [
-        "/^Dockerfile$/"
-      ],
-      "matchStrings": [
-        "SABNZBD_VERSION=(?<currentValue>[0-9.]+)"
-      ],
+      "managerFilePatterns": ["Dockerfile"],
+      "matchStrings": ["SABNZBD_VERSION=(?<currentValue>[0-9.]+)"],
       "depNameTemplate": "sabnzbd/sabnzbd",
       "datasourceTemplate": "github-releases"
     },
     {
       "customType": "regex",
       "description": "Detect Tini release version pin",
-      "managerFilePatterns": [
-        "/^Dockerfile$/"
-      ],
-      "matchStrings": [
-        "TINI_VERSION\\s+v?(?<currentValue>[0-9.]+)"
-      ],
+      "managerFilePatterns": ["Dockerfile"],
+      "matchStrings": ["\"TINI_VERSION\"\\s+\"v?(?<currentValue>[0-9.]+)\""],
       "depNameTemplate": "krallin/tini",
       "datasourceTemplate": "github-releases"
     },
     {
       "customType": "regex",
       "description": "Detect par2cmdline release version pin",
-      "managerFilePatterns": [
-        "/^Dockerfile$/"
-      ],
-      "matchStrings": [
-        "PAR2CMDLINE_VERSION=v?(?<currentValue>[0-9a-z.]+-mt\\d+)"
-      ],
+      "managerFilePatterns": ["Dockerfile"],
+      "matchStrings": ["PAR2CMDLINE_VERSION=v?(?<currentValue>[0-9a-z.]+-mt\\d+)"],
       "depNameTemplate": "jkansanen/par2cmdline-mt",
       "datasourceTemplate": "github-tags"
     }
   ]
-}
+}