Update README CLI options to reflect recent profiling and snapshot enhancements

[Copilot]

The CLI has been recently enhanced with new profiling capabilities and snapshot support, but the README documentation was not updated to reflect these changes. This PR updates the CLI options section to accurately document the current implementation.

Changes Made

Updated -p option:

• Changed from --profileXslt to --profile
• Enhanced description to reflect new profiling options: xslt, efx, all
• Now supports comprehensive performance analysis beyond just XSLT profiling

Added -s option:

• New --snapshots option to allow downloading SNAPSHOT SDK versions instead of stable releases
• Provides flexibility for users who need to work with development versions

Before and After

Before:

- `-p` or `--profileXslt`: Enables XSLT profiling.

After:

- `-p` or `--profile`: Enables profiling for performance analysis. Options: xslt, efx, all (default: all if no value specified).
- `-s` or `--snapshots`: Allows downloading SNAPSHOT SDK versions instead of stable releases.

The documentation now accurately reflects the CLI implementation added in PR #110 which introduced EFX profiling capabilities and enhanced the command-line interface.

Fixes #111.

Warning

Firewall rules blocked me from connecting to one or more addresses

I tried to connect to the following addresses, but was blocked by firewall rules:

• central.sonatype.com
  • Triggering command: /usr/lib/jvm/temurin-17-jdk-amd64/bin/java --enable-native-access=ALL-UNNAMED -classpath /usr/share/apache-maven-3.9.11/boot/plexus-classworlds-2.9.0.jar -Dclassworlds.conf=/usr/share/apache-maven-3.9.11/bin/m2.conf -Dmaven.home=/usr/share/apache-maven-3.9.11 -Dlibrary.jansi.path=/usr/share/apache-maven-3.9.11/lib/jansi-native -Dmaven.multiModuleProjectDirectory=/home/REDACTED/work/eforms-notice-viewer/eforms-notice-viewer org.codehaus.plexus.classworlds.launcher.Launcher clean compile -q (dns block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)

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