Redis Client: fix NPE when constructing XPendingSummary #49016

Job	Run time
Attach pull request number	4s
CI Sanity Check	31s
Initial JDK 17 Build	13m 49s
Calculate Test Jobs	9s
JVM Tests - JDK 17	40m 57s
Kubernetes Tests - JDK 17	17m 56s
JVM Tests - JDK 21	40m 59s
Devtools Tests - JDK ${{ matrix.java.name }}	0s
Kubernetes Tests - JDK 21	17m 5s
Gradle Tests - JDK ${{ matrix.java.name }}	0s
JVM Tests - JDK 17 Windows	25m 8s
Kubernetes Tests - JDK 17 Windows	19m 11s
Maven Tests - JDK ${{ matrix.java.name }}	0s
Quickstarts Compilation - JDK 17	6m 24s
Native Tests - Main	7m 30s
MicroProfile TCKs Tests	0s
Native Tests - Data3	5m 21s
Native Tests - Data4	15m 19s
Native Tests - Messaging1	26m 10s
Native Tests - Virtual Thread - Main	6m 52s
Native Tests - Security2	5m 44s
Native Tests - Cache	10m 18s
Native Tests - Virtual Thread - Messaging	4m 25s
Native Tests - HTTP	13m 35s
Native Tests - Misc3	6m 44s
Native Tests - Misc4	13m 53s
Native Tests - gRPC	5m 42s
Upload build stats to collector	0s
Build report	30s
	5h 4m 16s

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