Use Node 18 for v1 deployment since ovsx requires it

[t1m0thyj]

Fixes the failing workflow: https://github.com/zowe/zowe-explorer-vscode/actions/runs/8661844096

[sonarcloud[bot]]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
No data about Coverage
No data about Duplication

See analysis details on SonarCloud

[github-actions[bot]]

Release succeeded for the v1-lts branch. :tada:

The following packages have been published:

• npm: @zowe/zowe-explorer-api@1.22.7
• vsce: Zowe.vscode-extension-for-zowe@1.22.7
• vsce: Zowe.vscode-extension-for-zowe@1.22.7 (OVSX)
• vsce: Zowe.zowe-explorer-ftp-extension@1.22.7
• vsce: Zowe.zowe-explorer-ftp-extension@1.22.7 (OVSX)

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