Fix flaky static analysis tests with retry mechanisms and improved CI configuration

[Copilot]

The static analysis workflow was experiencing intermittent failures due to various CI environment issues including network timeouts, Gradle daemon conflicts, and resource contention. This PR implements comprehensive improvements to make the static analysis more reliable.

Changes Made

1. Retry Mechanisms

Added retry logic to handle transient failures:

• Package installation: 3 attempts with 30-second delays and dnf clean all between retries
• Gradle tasks (PMD, SpotBugs): 3 attempts with 10-second delays
• Build/install process: 2 attempts with make clean between retries

2. Gradle CI Configuration

Improved Gradle configuration for CI environments:

• Created libcobj/gradle.properties with org.gradle.daemon=false to prevent daemon conflicts
• Added --no-daemon --console=plain flags to all Gradle commands
• Increased network timeout from 10s to 60s in gradle-wrapper.properties
• Enabled build caching for better performance

3. Timeout Protection

Added timeouts to prevent hanging processes:

• 300-second timeout for format checking
• 300-second timeout for cppcheck analysis

4. Better Error Handling

• Clear error messages when retries are exhausted
• Proper cleanup between retry attempts
• More atomic package installation to avoid partial states

Example of Improvements

Before:

- name: Run PMD
  run: ./gradlew pmdMain

After:

- name: Run PMD
  run: |
    for i in {1..3}; do
      if ./gradlew pmdMain --no-daemon --console=plain; then
        break
      elif [ $i -eq 3 ]; then
        echo "PMD failed after 3 attempts"
        exit 1
      else
        echo "PMD attempt $i failed, retrying..."
        sleep 10
      fi
    done

These changes address the root causes of flakiness: network issues, daemon conflicts, and resource contention that are common in containerized CI environments.

Fixes #697.

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