Update Ubuntu PPA GPG key fingerprint #2364

Job	Run time
detect-changes	3s
test-scenarios (git)	6h 0m 19s
test (git, ubuntu:focal)	17s
test (git, debian:12)	17s
test (git, ubuntu:jammy)	23s
test (git, mcr.microsoft.com/devcontainers/base:noble)	26s
test (git, mcr.microsoft.com/devcontainers/base:ubuntu)	27s
test (git, mcr.microsoft.com/devcontainers/base:debian)	24s
test (git, debian:11)	25s
	6h 3m 1s

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