Update documentation for handling proxies in native-mode #832

Job	Run time
Initial JDK 17 Build	15m 58s
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CI Sanity Check	31s
Calculate Test Jobs	12s
JVM Tests - JDK 17	2m 42s
JVM Tests - JDK 21	4m 7s
Devtools Tests - JDK ${{ matrix.java.name }}	0s
Gradle Tests - JDK ${{ matrix.java.name }}	0s
Kubernetes Tests - JDK ${{ matrix.java.name }}	0s
JVM Tests - JDK 17 Windows	3m 9s
Quickstarts Compilation - JDK 17	6m 34s
Maven Tests - JDK ${{ matrix.java.name }}	0s
Native Tests - ${{ matrix.category }}	0s
MicroProfile TCKs Tests	0s
Native Tests - Virtual Thread - ${{ matrix.category }}	0s
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Build report	30s
	33m 43s

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