Fix typo

Author: laurit

samplers/src/main/java/io/opentelemetry/contrib/sampler/internal/RuleBasedRoutingSamplerComponentProvider.java

@@ -49,7 +49,7 @@ public Sampler create(DeclarativeConfigProperties config) {
       fallbackSampler = DeclarativeConfiguration.createSampler(fallbackModel);
     } catch (DeclarativeConfigException e) {
       throw new DeclarativeConfigException(
-          "rule_Based_routing sampler failed to create .fallback sampler", e);
+          "rule_based_routing sampler failed to create .fallback sampler", e);
     }
 
     String spanKindString = config.getString("span_kind", "SERVER");
@@ -92,7 +92,7 @@ public Sampler create(DeclarativeConfigProperties config) {
         builder.drop(attributeKey, pattern);
       } else {
         throw new DeclarativeConfigException(
-            "rule_based_routing sampler .rules[].action is must be "
+            "rule_based_routing sampler .rules[].action must be "
                 + ACTION_RECORD_AND_SAMPLE
                 + " or "
                 + ACTION_DROP);