Add documentation example for DecompositionSeries #1472

Job	Run time
conda-linux-gallery-python3.12-ros3	1m 33s
linux-gallery-python3.8-minimum	2m 4s
conda-linux-python3.12-ros3	1m 36s
linux-gallery-python3.12-upgraded	3m 25s
windows-gallery-python3.8-minimum	3m 11s
linux-python3.8-minimum	7m 36s
windows-gallery-python3.12-upgraded	5m 42s
linux-python3.12-upgraded	7m 20s
conda-linux-python3.8-minimum	6m 52s
windows-python3.8-minimum	7m 44s
conda-linux-python3.12-upgraded	5m 44s
windows-python3.12-upgraded	7m 41s
macos-python3.8-minimum	12m 32s
Deploy pre-release from dev	0s
	1h 13m 0s

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