Fix 'make beats-dashboards' target

[cmacknz]

A previous dependabot update for Python missed updating the requirements.txt files of each individual beat, creating a dependency conflict on the protobuf package.

[mergify]

This pull request does not have a backport label.
If this is a bug or security fix, could you label this PR @cmacknz? 🙏.
For such, you'll need to label your PR with:

• The upcoming major version of the Elastic Stack
• The upcoming minor version of the Elastic Stack (if you're not pushing a breaking change)

To fixup this pull request, you need to add the backport labels for the needed
branches, such as:

• backport-v8./d.0 is the label to automatically backport to the 8./d branch. /d is the digit

[elasticmachine]

💔 Build Failed

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Build stats

• Start Time: 2024-01-23T18:03:32.766+0000

• Duration: 165 min 46 sec

Test stats 🧪

Test	Results
Failed	0
Passed	28200
Skipped	1866
Total	30066

Steps errors

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Installing golang.org/x/tools/cmd/goimports@latest

• Took 0 min 16 sec . View more details here
• Description: go install golang.org/x/tools/cmd/goimports@latest

auditbeat-packaging-linux - mage package

• Took 7 min 12 sec . View more details here
• Description: mage package

auditbeat-packaging-arm-ubuntu-2204-aarch64 - mage package

• Took 3 min 5 sec . View more details here
• Description: mage package

heartbeat-packaging-linux - mage package

• Took 13 min 6 sec . View more details here
• Description: mage package

heartbeat-packaging-arm-ubuntu-2204-aarch64 - mage package

• Took 8 min 55 sec . View more details here
• Description: mage package

metricbeat-packaging-linux - mage package

• Took 11 min 17 sec . View more details here
• Description: mage package

metricbeat-packaging-arm-ubuntu-2204-aarch64 - mage package

• Took 6 min 4 sec . View more details here
• Description: mage package

packetbeat-packaging-linux - mage package

• Took 11 min 57 sec . View more details here
• Description: mage package

packetbeat-packaging-arm-ubuntu-2204-aarch64 - mage package

• Took 3 min 30 sec . View more details here
• Description: mage package

Error signal

• Took 0 min 0 sec . View more details here
• Description: Error 'hudson.AbortException: script returned exit code 1'

💚 Flaky test report

Tests succeeded.

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[cmacknz]

Merging this, the packaging failures are a known issue separate from the one fixed here.