[BE][CI] Add `pip_install` macro

Replaces repeated `as_jenkins pip install --progress-bar off` with call
to `pip_install` macro

Pull Request resolved: https://github.com/pytorch/pytorch/pull/77475

Approved by: https://github.com/kit1980, https://github.com/seemethere
diff --git a/.circleci/docker/common/install_conda.sh b/.circleci/docker/common/install_conda.sh
index b333051..61672e8 100755
--- a/.circleci/docker/common/install_conda.sh
+++ b/.circleci/docker/common/install_conda.sh
@@ -68,6 +68,10 @@
     as_jenkins conda install -q -y python="$ANACONDA_PYTHON_VERSION" $*
   }
 
+  pip_install() {
+    as_jenkins pip install --progress-bar off $*
+  }
+
   # Install PyTorch conda deps, as per https://github.com/pytorch/pytorch README
   # DO NOT install cmake here as it would install a version newer than 3.10, but
   # we want to pin to version 3.10.
@@ -94,22 +98,22 @@
   conda_install nnpack -c killeent
 
   # Install some other packages, including those needed for Python test reporting
-  as_jenkins pip install --progress-bar off -r /opt/conda/requirements-ci.txt
+  pip_install -r /opt/conda/requirements-ci.txt
 
   # Install numba only on python-3.8 or below
   # For numba issue see https://github.com/pytorch/pytorch/issues/51511
   if [[ $(python -c "import sys; print(int(sys.version_info < (3, 9)))") == "1" ]]; then
-    as_jenkins pip install --progress-bar off numba==0.54.1
+    pip_install numba==0.54.1
   else
-    as_jenkins pip install --progress-bar off numba==0.49.0
+    pip_install numba==0.49.0
   fi
 
   # Update scikit-learn to a python-3.8 compatible version
   if [[ $(python -c "import sys; print(int(sys.version_info >= (3, 8)))") == "1" ]]; then
-    as_jenkins pip install --progress-bar off -U scikit-learn
+    pip_install -U scikit-learn
   else
     # Pinned scikit-learn due to https://github.com/scikit-learn/scikit-learn/issues/14485 (affects gcc 5.5 only)
-    as_jenkins pip install --progress-bar off scikit-learn==0.20.3
+    pip_install scikit-learn==0.20.3
   fi
 
   popd