fix spring smoke test versions (#11325)

.github/renovate.json5

@@ -112,10 +112,23 @@
         "smoke-tests-otel-starter/spring-boot-reactive-common/build.gradle.kts",
         "smoke-tests-otel-starter/spring-smoke-testing/build.gradle.kts"
       ],
-      "matchPackageNames": ["org.springframework.boot", "org.springframework.boot:spring-boot-dependencies"],
+      "matchPackageNames": [
+        "org.slf4j:slf4j-api",
+        "org.springframework.boot",
+        "org.springframework.boot:spring-boot-dependencies"],
       "matchUpdateTypes": ["major"],
       "enabled": false,
     },
+    {
+      // intentionally using Spring Boot 2 in this smoke tests
+      "matchFileNames": [
+        "smoke-tests-otel-starter/spring-boot-2/build.gradle.kts",
+        "smoke-tests-otel-starter/spring-boot-reactive-2/build.gradle.kts"
+      ],
+      "matchPackageNames": ["ch.qos.logback:logback-classic"],
+      "matchUpdateTypes": ["minor"],
+      "enabled": false,
+    },
     {
       // intentionally using logback 1.2 in this smoke tests
       "matchFileNames": ["smoke-tests/images/spring-boot/build.gradle.kts"],