Include default resource requests for garbage collector (#160)

### Changelog
<!-- Write a one-sentence summary of the user-impacting change (API,
UI/UX, performance, etc) that could appear in a changelog. Write "None"
if there is no user-facing change -->

- primary-site: include default resource requests for garbage collector

### Docs

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documentation changes are needed. -->

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### Description

Some clouds don't give pods default resources, so make sure they're
there just in case.

Fixes FIRE-240.

Author: bennetthardwick

charts/primary-site/templates/cronjobs/garbage-collector.yaml

@@ -33,6 +33,13 @@ spec:
           containers:
             - name: garbage-collector
               image: {{ .Values.garbageCollector.deployment.image }}:{{ .Chart.AppVersion }}
+              resources:
+                requests:
+                  cpu: {{ .Values.garbageCollector.deployment.resources.requests.cpu }}
+                  memory: {{ .Values.garbageCollector.deployment.resources.requests.memory }}
+                limits:
+                  cpu: {{ .Values.garbageCollector.deployment.resources.limits.cpu }}
+                  memory: {{ .Values.garbageCollector.deployment.resources.limits.memory }}
               securityContext:
                 readOnlyRootFilesystem: true
                 capabilities:

charts/primary-site/values.yaml

@@ -243,6 +243,13 @@ garbageCollector:
     extraVolumeMounts: []
     env: []
     nodeSelectors: {}
+    resources:
+      requests:
+        cpu: 250m
+        memory: 250Mi
+      limits:
+        cpu: 250m
+        memory: 250Mi
     serviceAccount:
       enabled: false
       annotations: {}