cargo: bump the patch group in /src/exercises/bare-metal/rtc with 3 updates (#2859)

Bumps the patch group in /src/exercises/bare-metal/rtc with 3 updates:
arm-gic, arm-pl011-uart and
[bitflags](https://github.com/bitflags/bitflags).

Updates `arm-gic` from 0.6.0 to 0.6.1

Updates `arm-pl011-uart` from 0.3.1 to 0.3.2

Updates `bitflags` from 2.9.1 to 2.9.3

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

@@ -9,9 +9,9 @@ publish = false
 [dependencies]
 aarch64-paging = { version = "0.10.0", default-features = false }
 aarch64-rt = "0.2.2"
-arm-gic = "0.6.0"
-arm-pl011-uart = "0.3.1"
-bitflags = "2.9.1"
+arm-gic = "0.6.1"
+arm-pl011-uart = "0.3.2"
+bitflags = "2.9.3"
 chrono = { version = "0.4.41", default-features = false }
 log = "0.4.27"
 safe-mmio = "0.2.5"