[chore][probabilisticsamplerprocessor] Add stability level per metric

processor/probabilisticsamplerprocessor/documentation.md

@@ -8,16 +8,16 @@ The following telemetry is emitted by this component.
 
 ### otelcol_processor_probabilistic_sampler_count_logs_sampled
 
-Count of logs that were sampled or not
+Count of logs that were sampled or not [development]
 
-| Unit | Metric Type | Value Type | Monotonic |
-| ---- | ----------- | ---------- | --------- |
-| 1 | Sum | Int | true |
+| Unit | Metric Type | Value Type | Monotonic | Stability |
+| ---- | ----------- | ---------- | --------- | --------- |
+| 1 | Sum | Int | true | development |
 
 ### otelcol_processor_probabilistic_sampler_count_traces_sampled
 
-Count of traces that were sampled or not
+Count of traces that were sampled or not [development]
 
-| Unit | Metric Type | Value Type | Monotonic |
-| ---- | ----------- | ---------- | --------- |
-| 1 | Sum | Int | true |
+| Unit | Metric Type | Value Type | Monotonic | Stability |
+| ---- | ----------- | ---------- | --------- | --------- |
+| 1 | Sum | Int | true | development |

processor/probabilisticsamplerprocessor/metadata.yaml

@@ -19,13 +19,17 @@ telemetry:
     processor_probabilistic_sampler_count_traces_sampled:
       enabled: true
       description: Count of traces that were sampled or not
+      stability:
+        level: development
       unit: "1"
       sum:
         value_type: int
         monotonic: true
     processor_probabilistic_sampler_count_logs_sampled:
       enabled: true
       description: Count of logs that were sampled or not
+      stability:
+        level: development
       unit: "1"
       sum:
         value_type: int