Fix renovate configuration (#12287)

Author: trask

.github/renovate.json5

@@ -33,13 +33,6 @@
       "ignoreUnstable": false,
       "allowedVersions": "!/\\-SNAPSHOT$/"
     },
-    {
-      // we are not going to update the semconv in 1.x branch
-      "matchPackageNames": ["io.opentelemetry.semconv:opentelemetry-semconv"],
-      "matchUpdateTypes": ["minor"],
-      "matchBaseBranches": ["release/v1.33.x"],
-      "enabled": false
-    },
     {
       "matchPackagePrefixes": ["ch.qos.logback:"],
       "groupName": "logback packages"