[system][process] add swap field to memory group

packages/system/changelog.yml

@@ -1,4 +1,9 @@
 # newer versions go on top
+- version: "2.10.0"
+  changes:
+    - description: Added swap field to process.memory data stream.
+      type: enhancement
+      link: https://github.com/elastic/integrations/pull/16754
 - version: "2.9.0"
   changes:
     - description: Update README with Alerting Rule Template.

packages/system/data_stream/process/fields/fields.yml

@@ -85,6 +85,12 @@
           metric_type: gauge
           description: |
             The shared memory the process uses.
+        - name: swap
+          type: long
+          unit: byte
+          metric_type: gauge
+          description: |
+            The swap memory the process uses.
     - name: fd
       type: group
       fields:

packages/system/docs/README.md

@@ -1752,6 +1752,7 @@ Please refer to the following [document](https://www.elastic.co/guide/en/ecs/cur
 | system.process.memory.rss.pct | The percentage of memory the process occupied in main memory (RAM). | scaled_float | percent | gauge |
 | system.process.memory.share | The shared memory the process uses. | long | byte | gauge |
 | system.process.memory.size | The total virtual memory the process has. On Windows this represents the Commit Charge (the total amount of memory that the memory manager has committed for a running process) value in bytes for this process. | long | byte | gauge |
+| system.process.memory.swap | The swap memory the process uses. | long | byte | gauge |
 | system.process.num_threads | Number of threads in the process | integer |  |  |
 | system.process.state | The process state. For example: "running". | keyword |  |  |
 

packages/system/manifest.yml

@@ -1,7 +1,7 @@
 format_version: 3.4.0
 name: system
 title: System
-version: "2.9.0"
+version: "2.10.0"
 description: Collect system logs and metrics from your servers with Elastic Agent.
 type: integration
 categories: