feat: allow for modifying var-run mount maximum size limit (#2624)

config/crd/bases/actions.summerwind.dev_runnersets.yaml

@@ -55,6 +55,12 @@ spec:
                   type: integer
                 dockerRegistryMirror:
                   type: string
+                dockerVarRunVolumeSizeLimit:
+                  anyOf:
+                    - type: integer
+                    - type: string
+                  pattern: ^(\+|-)?(([0-9]+(\.[0-9]*)?)|(\.[0-9]+))(([KMGTPE]i)|[numkMGTPE]|([eE](\+|-)?(([0-9]+(\.[0-9]*)?)|(\.[0-9]+))))?$
+                  x-kubernetes-int-or-string: true
                 dockerdWithinRunnerContainer:
                   type: boolean
                 effectiveTime: