chore(deps): [release-1.3] bump @backstage/plugin-techdocs-backend to 1.10.13

[coreydaley]

https://issues.redhat.com/browse/RHIDP-4114 https://issues.redhat.com/browse/RHIDP-4115 https://issues.redhat.com/browse/RHIDP-4116 https://issues.redhat.com/browse/RHIDP-4117

[coreydaley]

/assign @nickboldt for approval /assign @JessicaJHee @04kash for lgtm

[sonarqubecloud[bot]]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud

[JessicaJHee]

/lgtm

[openshift-merge-robot]

PR needs rebase.

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[kim-tsao]

we can't update without moving up to a higher backstage version