Release carbon-otter-5

# (2026-03-31)

container: change pci-file-storage tags from beta to new and remove new tag of volume backup (5ec4862), closes #TAPC-5946

pci-file-storage: add custom error page for share not found (26a7e54), closes #TAPC-6299
pci-file-storage: add price on performance mode (77ea259), closes #TAPC-5823
pci-file-storage: change onboarding page (8ca11d0), closes #TAPC-5946
pci-file-storage: fix deployment mode pricing (8758731), closes #TAPC-6078
pci-file-storage: fix documentation link (0bad3c3), closes #TAPC-5823
pci-file-storage: fix price units (126479d), closes #TAPC-5823
pci-file-storage: fix pricing (1088d3c), closes #TAPC-5946