Add config error checking to run command

[bentsherman]

This PR adds the same error checking for config files to the run command as provided by the lint command / language server

Unit tests have been updated to reflect the strict syntax checking

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[bentsherman]

@pditommaso the CI is failing because rnaseq-nf has errors in the config file

+ /home/runner/work/nextflow/nextflow/nextflow run nextflow-io/rnaseq-nf -with-docker -with-tower
nextflow-io/rnaseq-nf
N E X T F L O W  ~  version 25.03.0-edge
Pulling nextflow-io/rnaseq-nf ...
 downloaded from https://github.com/nextflow-io/rnaseq-nf.git

nextflow.config:130:24: `AZURE_BATCH_ACCOUNT_NAME` is not defined
130 |         accountName = "$AZURE_BATCH_ACCOUNT_NAME"
    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^

nextflow.config:131:23: `AZURE_BATCH_ACCOUNT_KEY` is not defined
131 |         accountKey = "$AZURE_BATCH_ACCOUNT_KEY"
    |                       ^^^^^^^^^^^^^^^^^^^^^^^^

nextflow.config:137:24: `AZURE_STORAGE_ACCOUNT_NAME` is not defined
137 |         accountName = "$AZURE_STORAGE_ACCOUNT_NAME"
    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^

nextflow.config:138:23: `AZURE_STORAGE_ACCOUNT_KEY` is not defined
138 |         accountKey = "$AZURE_STORAGE_ACCOUNT_KEY"
    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^


ERROR ~ Config parsing failed

It is using implicit environment variables which are not supported in the strict syntax. But I think these vars are used by nf-azure implicitly anyway so I think they can be removed. I made a PR here: nextflow-io/rnaseq-nf#33

[pditommaso]

if i'm understanding correctly this check config using parser v2 ahead of run? is it correct?

[bentsherman]

It was already using config parser v2 in the run command, but it wasn't reporting the syntax errors, so this PR correctly reports config parser v2 errors