Make quarkus.docker.buildx.platform default to local #46303

Job	Run time
Attach pull request number	3s
CI Sanity Check	31s
Initial JDK 17 Build	8m 50s
Calculate Test Jobs	12s
Maven Tests - JDK 17	7m 38s
JVM Tests - JDK 17	6m 42s
Maven Tests - JDK 17 Windows	12m 33s
JVM Tests - JDK 21	6m 1s
Kubernetes Tests - JDK 17	7m 52s
Gradle Tests - JDK ${{ matrix.java.name }}	0s
JVM Tests - JDK 17 Windows	5m 11s
Kubernetes Tests - JDK 21	7m 46s
Kubernetes Tests - JDK 17 Windows	2m 21s
Devtools Tests - JDK ${{ matrix.java.name }}	0s
Native Tests - AWT, ImageIO and Java2D, Packaging .so files	6m 5s
Quickstarts Compilation - JDK 17	6m 7s
MicroProfile TCKs Tests	0s
Native Tests - Virtual Thread - ${{ matrix.category }}	0s
Upload build stats to collector	0s
Build report	47s
	1h 18m 39s

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