chore(release): bumps for 2.6 release #6175

Job	Run time
Lint Rust	9m 24s
Build Spin static (aarch64, aarch64-unknown-linux-musl)	16m 6s
Build Spin Ubuntu	22m 1s
Build Spin static (amd64, x86_64-unknown-linux-musl)	15m 54s
Review new dependencies for known vulnerabilities	5s
all-integration-tests	28m 5s
Build Spin (windows-latest)	46m 58s
Build Spin (macos-13)	1h 8m 11s
Run release build steps (ubuntu-20.04, amd64, --features openssl/vendored, target/release)	15m 54s
Test Spin (ubuntu-22.04-4core-spin)	14m 20s
Build Spin (macos-14)	22m 5s
Test Spin (macos-14)	29m 13s
Run release build steps (ubuntu-20.04, aarch64, --features openssl/vendored --target aarch64-unkn...	16m 43s
Run release build steps (macos-13, amd64, target/release)	24m 36s
Run release build steps (macos-14, aarch64, target/release)	18m 46s
Run release build steps (windows-latest, amd64, .exe, target/release)	29m 55s
	6h 18m 16s

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