Update venv snaps

Author: zanieb

crates/uv/tests/it/venv.rs

@@ -1348,6 +1348,7 @@ fn venv_python_preference() {
     ----- stderr -----
     Using CPython 3.11.[X] interpreter at: [PYTHON-3.11]
     Creating virtual environment at: .venv
+    warning: A virtual environment already exists at `.venv`. In the future, uv will require `--clear` to replace it
     Activate with: source .venv/[BIN]/activate
     ");
 
@@ -1359,6 +1360,7 @@ fn venv_python_preference() {
     ----- stderr -----
     Using CPython 3.11.[X] interpreter at: [PYTHON-3.11]
     Creating virtual environment at: .venv
+    warning: A virtual environment already exists at `.venv`. In the future, uv will require `--clear` to replace it
     Activate with: source .venv/[BIN]/activate
     ");
 
@@ -1370,6 +1372,7 @@ fn venv_python_preference() {
     ----- stderr -----
     Using CPython 3.12.[X] interpreter at: [PYTHON-3.12]
     Creating virtual environment at: .venv
+    warning: A virtual environment already exists at `.venv`. In the future, uv will require `--clear` to replace it
     Activate with: source .venv/[BIN]/activate
     ");
 
@@ -1381,6 +1384,7 @@ fn venv_python_preference() {
     ----- stderr -----
     Using CPython 3.12.[X] interpreter at: [PYTHON-3.12]
     Creating virtual environment at: .venv
+    warning: A virtual environment already exists at `.venv`. In the future, uv will require `--clear` to replace it
     Activate with: source .venv/[BIN]/activate
     ");
 }