Add DevServices for Redis extension

[machi1990]

Closes #16714

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[gsmet]

I added a couple of questions and suggestions.

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Status	Name	Step	Test failures	Logs	Raw logs
⌛	Devtools Tests - JDK 11	Build	⚠️ Check →	Logs	Raw logs
⌛	Devtools Tests - JDK 11 Windows		⚠️ Check →	Logs	Raw logs
⌛	Gradle Tests - JDK 11 Linux	Build	⚠️ Check →	Logs	Raw logs
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⌛	JVM Tests - JDK 11	Build	⚠️ Check →	Logs	Raw logs
⌛	JVM Tests - JDK 11 Windows	Extract Maven Repo	⚠️ Check →	Logs	Raw logs
⌛	JVM Tests - JDK 15	Reclaim Disk Space	⚠️ Check →	Logs	Raw logs
⌛	Maven Tests - JDK 11	Build	⚠️ Check →	Logs	Raw logs
⌛	Maven Tests - JDK 11 Windows		⚠️ Check →	Logs	Raw logs
⌛	MicroProfile TCKs Tests		⚠️ Check →	Logs	Raw logs
⌛	Native Tests - Data1	Reclaim Disk Space	⚠️ Check →	Logs	Raw logs
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⌛	Native Tests - Data5		⚠️ Check →	Logs	Raw logs
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⌛	Native Tests - Messaging1		⚠️ Check →	Logs	Raw logs
⌛	Native Tests - Security3		⚠️ Check →	Logs	Raw logs
⌛	Native Tests - Windows - hibernate-validator		⚠️ Check →	Logs	Raw logs

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This workflow status is outdated as a new workflow run has been triggered.

Failing Jobs - Building 5dd99f2

Status	Name	Step	Test failures	Logs	Raw logs
✖	Initial JDK 11 Build	Build	⚠️ Check →	Logs	Raw logs
🚫	Calculate Test Jobs
🚫	Devtools Tests - JDK ${{ matrix.java.name }}
🚫	Devtools Tests - JDK 11 Windows
🚫	Gradle Tests - JDK 11 ${{ matrix.os.family }}
🚫	JVM Tests - JDK ${{ matrix.java.name }}
🚫	JVM Tests - JDK 11 Windows
🚫	Maven Tests - JDK ${{ matrix.java.name }}
🚫	Maven Tests - JDK 11 Windows
🚫	MicroProfile TCKs Tests
🚫	Native Tests - ${{ matrix.category }}

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Failing Jobs - Building bfa83fb

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Status	Name	Step	Test failures	Logs	Raw logs
⌛	Initial JDK 11 Build	Run actions/checkout@v2	⚠️ Check →	Logs	Raw logs
⌛	CI Sanity Check	Build	⚠️ Check →	Logs	Raw logs

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This workflow status is outdated as a new workflow run has been triggered.

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Failing Jobs - Building 74c3dc4

⚠️ Artifacts of the workflow run were not available thus the report misses some details.

Status	Name	Step	Test failures	Logs	Raw logs
⌛	JVM Tests - JDK 11	Build	⚠️ Check →	Logs	Raw logs
⌛	JVM Tests - JDK 11 Windows	Build	⚠️ Check →	Logs	Raw logs
⌛	JVM Tests - JDK 15	Build	⚠️ Check →	Logs	Raw logs