ci(renovate): fix regex to target only app version

Author: SQuent

.releaserc.yml

@@ -10,8 +10,18 @@ plugins:
     - replacements:
       - files:
         - "pyproject.toml"
-        from: "version = \".*\""
-        to: "version = \"${nextRelease.version}\""
+        from: "version = '.*'"
+        to: "version = '${nextRelease.version}'"
+        results:
+          - file: "pyproject.toml"
+            hasChanged: true
+            numMatches: 1
+            numReplacements: 1
+        countMatches: true
+      - files:
+        - "pyproject.toml"
+        from: "version_variable = \\[\\s*\"pyproject.toml:version\"\\s*\\]"
+        to: "version_variable = [\"pyproject.toml:version\"]"
         results:
           - file: "pyproject.toml"
             hasChanged: true