fix configure option to disable wxwidgets for gnuplot 5.4.6

[Micket]

(created using eb --new-pr)

In my previous PR #18648, i tried using --without-wx but it looks like it's better to use --disable-wxidgets otherwise it still seems to be looking for wx-config. Thanks to #18600

[Micket]

Test report by @Micket
SUCCESS
Build succeeded for 1 out of 1 (1 easyconfigs in total)
vera-c1 - Linux Rocky Linux 8.7, x86_64, Intel Xeon Processor (Skylake), Python 3.6.8
See https://gist.github.com/Micket/e8c265dcbb6825a049710379457fa3a9 for a full test report.

[Micket]

@boegelbot please test @ generoso

[boegelbot]

@Micket: Request for testing this PR well received on login1

PR test command 'EB_PR=18691 EB_ARGS= EB_CONTAINER= /opt/software/slurm/bin/sbatch --job-name test_PR_18691 --ntasks=4 ~/boegelbot/eb_from_pr_upload_generoso.sh' executed!

• exit code: 0
• output:

Submitted batch job 11588

Test results coming soon (I hope)...

- notification for comment with ID 1699432265 processed

Message to humans: this is just bookkeeping information for me,
it is of no use to you (unless you think I have a bug, which I don't).

[boegelbot]

Test report by @boegelbot
SUCCESS
Build succeeded for 1 out of 1 (1 easyconfigs in total)
cns1 - Linux Rocky Linux 8.5, x86_64, Intel(R) Xeon(R) CPU E5-2667 v3 @ 3.20GHz (haswell), Python 3.6.8
See https://gist.github.com/boegelbot/cc7903cadd4f9da707ba117892b5a531 for a full test report.

[Micket]

@boegelbot please test @ jsc-zen2

[boegelbot]

@Micket: Request for testing this PR well received on jsczen2l1.int.jsc-zen2.easybuild-test.cluster

PR test command 'EB_PR=18691 EB_ARGS= /opt/software/slurm/bin/sbatch --mem-per-cpu=4000M --job-name test_PR_18691 --ntasks=8 ~/boegelbot/eb_from_pr_upload_jsc-zen2.sh' executed!

• exit code: 0
• output:

Submitted batch job 3277

Test results coming soon (I hope)...

- notification for comment with ID 1699439121 processed

Message to humans: this is just bookkeeping information for me,
it is of no use to you (unless you think I have a bug, which I don't).

[boegelbot]

Test report by @boegelbot
SUCCESS
Build succeeded for 1 out of 1 (1 easyconfigs in total)
jsczen2c1.int.jsc-zen2.easybuild-test.cluster - Linux Rocky Linux 8.5, x86_64, AMD EPYC 7742 64-Core Processor (zen2), Python 3.6.8
See https://gist.github.com/boegelbot/13859b7735b551194fc6ef7811b0b22b for a full test report.

[smoors]

lgtm

[smoors]

Going in, thanks @Micket!