Update dependencies to platform version 1.27.3

[claymccoy]

Event

{
  "branchName": "release-1.27.x",
  "createTag": true,
  "dependencyUpdates": [
    {
      "depName": "orca",
      "depVersion": "8.18.8"
    },
    {
      "depName": "kork",
      "depVersion": "7.115.2"
    }
  ],
  "hasDependencyUpdates": true,
  "newGradleProperties": "spinnakerRelease=1.27.3\norg.gradle.parallel=true\n\nspinnakerGradleVersion=8.10.0\npf4jVersion=3.2.0\nkorkVersion=7.115.2\norcaVersion=8.18.8\nkotlinVersion=1.3.72\nk8sClientVersion=5.0.0",
  "orgName": "spinnaker-plugin-examples",
  "platformVersion": "1.27.3",
  "repoId": "MDEwOlJlcG9zaXRvcnkyNzU1OTQ4NTI=",
  "repoName": "preconfiguredJob"
}