fix(java-on-aws-infra): fix sed command compatibility for cross-platform support

Author: Yuriy Bezsonov

infra/scripts/templates/java-spring-ai-agents.sh

@@ -25,9 +25,9 @@ log_info "Phase 2: Simplifying p10k prompt..."
 P10K_FILE="$HOME/.p10k.zsh"
 if [[ -f "$P10K_FILE" ]]; then
     # Remove vcs from left prompt
-    sed -i '' "s/POWERLEVEL9K_LEFT_PROMPT_ELEMENTS=(dir vcs newline prompt_char)/POWERLEVEL9K_LEFT_PROMPT_ELEMENTS=(dir newline prompt_char)/" "$P10K_FILE"
+    sed -i "s/POWERLEVEL9K_LEFT_PROMPT_ELEMENTS=(dir vcs newline prompt_char)/POWERLEVEL9K_LEFT_PROMPT_ELEMENTS=(dir newline prompt_char)/" "$P10K_FILE"
     # Remove kubecontext and aws from right prompt
-    sed -i '' "s/POWERLEVEL9K_RIGHT_PROMPT_ELEMENTS=(status command_execution_time background_jobs kubecontext aws newline)/POWERLEVEL9K_RIGHT_PROMPT_ELEMENTS=(status command_execution_time background_jobs newline)/" "$P10K_FILE"
+    sed -i "s/POWERLEVEL9K_RIGHT_PROMPT_ELEMENTS=(status command_execution_time background_jobs kubecontext aws newline)/POWERLEVEL9K_RIGHT_PROMPT_ELEMENTS=(status command_execution_time background_jobs newline)/" "$P10K_FILE"
     log_success "p10k prompt simplified"
 else
     log_warning "p10k.zsh not found, skipping prompt customization"