cargo: bump the patch group in /src/exercises/bare-metal/rtc with 3 updates (#2796)

Bumps the patch group in /src/exercises/bare-metal/rtc with 3 updates:
[aarch64-rt](https://github.com/google/aarch64-rt),
[smccc](https://github.com/google/smccc) and
[zerocopy](https://github.com/google/zerocopy).

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

src/exercises/bare-metal/rtc/Cargo.lock

@@ -8,13 +8,13 @@ publish = false
 
 [dependencies]
 aarch64-paging = { version = "0.9.1", default-features = false }
-aarch64-rt = "0.2.0"
+aarch64-rt = "0.2.1"
 arm-gic = "0.4.0"
 arm-pl011-uart = "0.3.1"
 bitflags = "2.9.1"
 chrono = { version = "0.4.41", default-features = false }
 log = "0.4.27"
 safe-mmio = "0.2.5"
-smccc = "0.2.1"
+smccc = "0.2.2"
 spin = "0.10.0"
-zerocopy = "0.8.25"
+zerocopy = "0.8.26"