Fix build failure

[awharn]

Fixes a build failure on Node 14 which was using an outdated and unsupported version of NPM in the pipelines.

[sonarcloud[bot]]

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0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

No Coverage information
No Duplication information

[github-actions[bot]]

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

The following packages have been published:

• npm: @zowe/db2-for-zowe-cli@4.1.8

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