Angular: 20.0.0-rc.1 Release

compiler

| Commit | Description | | -- | -- | | | incorrectly handling let declarations inside i18n (#60512) | | | reduce allocations for let declarations only used in the same view (#60512) |

compiler-cli

| Commit | Description | | -- | -- | | | avoid fatal diagnostics for invalid module schemas (#61220) |

core

| Commit | Description | | -- | -- | | | enable stashing only when withEventReplay() is invoked (#61077) |