Update requirements-dev to not use eggs (#1721)

JenkinsfileRT

@@ -36,7 +36,7 @@ bc2.nodetype = 'linux'
 bc2.env_vars = ['TEST_BIGDATA=https://bytesalad.stsci.edu/artifactory']
 bc2.conda_packages = ['python=3.9']
 bc2.build_cmds = ["pip install numpy astropy codecov pytest-cov ci-watson || true",
-                 "pip install -r requirements-dev.txt --upgrade -e '.[test]' || true"
+                 "pip install -r requirements-dev.txt --upgrade -e '.[test]' || true",
                  "pip freeze || true"]
 bc1.test_cmds = ["pytest --cov=./ --basetemp=tests_output --junitxml=results.xml --bigdata || true",
                 "codecov || true"]

requirements-dev.txt

@@ -1,6 +1,7 @@
-git+https://github.com/astropy/photutils.git#egg=photutils
-git+https://github.com/spacetelescope/stsci.tools.git#egg=stsci.tools
-git+https://github.com/spacetelescope/stwcs.git#egg=stwcs
+git+https://github.com/astropy/photutils.git
+git+https://github.com/spacetelescope/stsci.tools.git
+git+https://github.com/spacetelescope/stwcs.git
+git+https://github.com/spacetelescope/stregion.git
 #git+https://github.com/astropy/astroquery.git#egg=astroquery
 --extra-index-url https://pypi.anaconda.org/astropy/simple astropy --pre