Don't assume that multipart part without filename is always text #37679

Job	Run time
Attach pull request number	3s
CI Sanity Check	31s
Initial JDK 17 Build	10m 14s
Calculate Test Jobs	10s
Gradle Tests - JDK 17	25m 23s
JVM Tests - JDK 17	2h 20m 10s
Gradle Tests - JDK 17 Windows	52m 3s
JVM Tests - JDK 21	2h 19m 7s
Kubernetes Tests - JDK 17	12m 39s
Devtools Tests - JDK ${{ matrix.java.name }}	0s
JVM Tests - JDK 17 Windows	2h 11m 31s
Kubernetes Tests - JDK 21	12m 49s
Maven Tests - JDK 17	8m 33s
Quickstarts Compilation - JDK 17	6m 12s
Maven Tests - JDK 17 Windows	11m 46s
Native Tests - Virtual Thread - Main	22m 54s
Kubernetes Tests - JDK 17 Windows	17m 15s
Native Tests - Virtual Thread - Messaging	9m 35s
MicroProfile TCKs Tests	27m 14s
Native Tests - Main	6m 17s
Native Tests - Data1	31m 34s
Native Tests - Data2	26m 57s
Native Tests - Data3	19m 49s
Native Tests - Data4	19m 15s
Native Tests - Data5	15m 2s
Native Tests - Data6	20m 34s
Native Tests - Data7	26m 22s
Native Tests - Amazon	14m 18s
Native Tests - Messaging1	22m 36s
Native Tests - Security2	16m 1s
Native Tests - Security3	8m 26s
Native Tests - Cache	12m 5s
Native Tests - HTTP	23m 23s
Native Tests - Misc1	11m 28s
Native Tests - Misc2	6m 20s
Native Tests - Misc3	19m 54s
Native Tests - Misc4	33m 48s
Native Tests - Spring	11m 51s
Native Tests - gRPC	12m 23s
Build report	1m 17s
	16h 27m 49s

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