[Synthetics Job Manager] Update chart values for SJM (#1141)

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#### Is this a new chart

No

#### What this PR does / why we need it:

We need this so we can reach parity with the helm chart version and the
public release version.

#### Which issue this PR fixes
*(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)`
format, will close that issue when PR gets merged)*
  - fixes #
  
Helps us reach parity between helm chart and public release version.

#### Special notes for your reviewer:

Here are the changes between 286 -> 291:

https://source.datanerd.us/synthetics/synthetics-kevin/compare/release-286...release-291
Here is the Public release showing 291:
Production: https://onenr.io/0gR70LyyXjo
EU: https://onenr.io/0VRVoObbxja
Here is the Private release showing 291:

https://hub.docker.com/layers/newrelic/synthetics-job-manager/release-291/images/sha256-865db0f682ace06b3601e465c4d23953ba4b22dbb665e81c4951887613c79f44?context=repo

#### Checklist
[Place an '[x]' (no spaces) in all applicable fields. Please remove
unrelated fields.]
- [x] Chart Version bumped
- [ ] Variables are documented in the README.md
- [x] Title of the PR starts with chart name (e.g. `[mychartname]`)

charts/synthetics-job-manager/Chart.yaml

@@ -2,8 +2,8 @@ apiVersion: v2
 name: synthetics-job-manager
 description: New Relic Synthetics Containerized Job Manager
 type: application
-version: 1.0.43
-appVersion: release-286
+version: 1.0.44
+appVersion: release-291
 home: https://github.com/orgs/newrelic/teams/proactive-monitoring
 maintainers:
   - name: Philip-R-Beckwith