HPCC-33182 make all helm examples dropzone subpaths to "mydropzone"

[xwang2713]

There are some inconsistences for dropzone subpath in Helm Charts.
Some use "mydropzone" and the others use "dropzone"
Since our regression tests assume "mydropzone" and to make it consistent "mydropzone" will be used.

There is a seperate JIRA https://hpccsystems.atlassian.net/browse/HPCC-33183 for documentation.

Signed off by xiaoming.wang@lexisnexisrisk.com

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Testing:

Tested on Docker Desktop environment. This will fix Regress Quick Test pipe8.ecl with "dropzone" as subpath.

[github-actions]

Jira Issue: https://hpccsystems.atlassian.net//browse/HPCC-33182

Jirabot Action Result:
Workflow Transition To: Merge Pending
Updated PR

[jakesmith]

$ ../helm/examples$ fgrep -R dropzone | fgrep -i subpath
fsx/hpcc-fsx-dynamic-pv/values.yaml:  subPath: dropzone
efs/hpcc-efs-dynamic-pv/values.yaml:  subPath: dropzone
efs/hpcc-efs-static-pv/values.yaml:  subPath: dropzone
esdl/values-hpcc-localfile.yaml:  subPath: dropzone
local/hpcc-localfile/values.yaml:  subPath: dropzone
azure/hpcc-azurefile/values.yaml:  subPath: dropzone
nfs/hpcc-nfs/values.yaml:  subPath: dropzone

all subPath's are currently (before this PR) "dropzone", and I think that's logical
In the same way other planes paths, e.g. data are not 'mydata'.

The prefix paths in the generated example files are not consistent though, i.e.:

/helm/examples$ fgrep -R dropzone | fgrep -i prefix
fsx/values-retained-fsx.yaml:    prefix: "/var/lib/HPCCSystems/mydropzone"
efs/values-retained-efs.yaml:    prefix: "/var/lib/HPCCSystems/mydropzone"
efs/values-auto-efs.yaml:    prefix: "/var/lib/HPCCSystems/mydropzone"
esdl/values-echo-example-localfile.yaml:    prefix: "/var/lib/HPCCSystems/dropzone"
local/values-localfile.yaml:    prefix: "/var/lib/HPCCSystems/mydropzone"
azure/values-auto-azurefile.yaml:    prefix: "/var/lib/HPCCSystems/mydropzone"
azure/values-retained-azurefile.yaml:    prefix: "/var/lib/HPCCSystems/mydropzone"

the only that's right is esdl/values-echo-example-localfile.yaml.
I think it would be more consistent to change these to paths to /var/lib/HPCCSystems/dropzone
OR, drop 'my' altogether, use 'dropzone' for the plane name and the subPath (and hence the prefix too).

[jakesmith]

@xwang2713 - see comment.