Update the toolchain and Static Linux SDK

[dkovba]

The PR updates the toolchain and Static Linux SDK. This resolves the compilation errors below:

Building vminitd and vmexec...
Building for debugging...
<unknown>:0: error: stack nearly exhausted; compilation time may suffer, and crashes due to stack overflow are likely
<module-includes>:1:10: note: in file included from <module-includes>:1:
1 | #include "SwiftMusl.h"
  |          `- note: in file included from <module-includes>:1:
2 | 

/Users/Dmitry/Library/org.swift.swiftpm/swift-sdks/swift-6.2-DEVELOPMENT-SNAPSHOT-2025-06-25-a_static-linux-0.0.1.artifactbundle/swift-6.2-DEVELOPMENT-SNAPSHOT-2025-06-25-a_static-linux-0.0.1/swift-linux-musl/musl-1.2.5.sdk/aarch64/usr/lib/swift_static/linux-static/aarch64/SwiftMusl.h:135:10: error: could not build module 'sys_stropts'
133 | #include <sys/signalfd.h>
134 | #include <sys/statfs.h>
135 | #include <sys/stropts.h>
    |          `- error: could not build module 'sys_stropts'
136 | #include <sys/swap.h>
137 | #include <sys/syscall.h>

<unknown>:0: error: stack nearly exhausted; compilation time may suffer, and crashes due to stack overflow are likely
<unknown>:0: error: could not build C module 'SwiftMusl'
<unknown>:0: error: stack nearly exhausted; compilation time may suffer, and crashes due to stack overflow are likely
<module-includes>:1:10: note: in file included from <module-includes>:1:
1 | #include "SwiftMusl.h"
  |          `- note: in file included from <module-includes>:1:
2 | 

/Users/Dmitry/Library/org.swift.swiftpm/swift-sdks/swift-6.2-DEVELOPMENT-SNAPSHOT-2025-06-25-a_static-linux-0.0.1.artifactbundle/swift-6.2-DEVELOPMENT-SNAPSHOT-2025-06-25-a_static-linux-0.0.1/swift-linux-musl/musl-1.2.5.sdk/aarch64/usr/lib/swift_static/linux-static/aarch64/SwiftMusl.h:135:10: error: could not build module 'sys_stropts'
133 | #include <sys/signalfd.h>
134 | #include <sys/statfs.h>
135 | #include <sys/stropts.h>
    |          `- error: could not build module 'sys_stropts'
136 | #include <sys/swap.h>
137 | #include <sys/syscall.h>

<unknown>:0: error: stack nearly exhausted; compilation time may suffer, and crashes due to stack overflow are likely
<unknown>:0: error: could not build C module 'SwiftMusl'
[719/1348] Compiling x_all.cc
make[1]: *** [all] Error 1
make: *** [vminitd] Error 2

To update:

• Run make cross-prep
• List the installed Static Linux SDKs using swift sdk list
• Remove the old Static Linux SDKs using swift sdk remove <SDK>

Optionally:

• List the installed toolchains using swiftly list
• Uninstalled the old toolchains using swiftly uninstall <TOOLCHAIN>