Patch SSLHTTPAdapter for latest requests

see psf/requests#6730

.SRCINFO

@@ -1,7 +1,7 @@
 pkgbase = python-ibm-cloud-sdk-core
 	pkgdesc = Core python functionality required by the IBM Cloud OpenAPI SDK Generator
 	pkgver = 3.20.0
-	pkgrel = 1
+	pkgrel = 2
 	url = https://github.com/IBM/python-sdk-core
 	arch = any
 	license = Apache-2.0

PKGBUILD

@@ -3,7 +3,7 @@
 pkgname='python-ibm-cloud-sdk-core'
 _name='ibm-cloud-sdk-core'
 pkgver=3.20.0
-pkgrel=1
+pkgrel=2
 pkgdesc="Core python functionality required by the IBM Cloud OpenAPI SDK Generator"
 url="https://github.com/IBM/python-sdk-core"
 depends=('python-requests' 'python-dateutil' 'python-pyjwt')
@@ -16,6 +16,9 @@ sha256sums=('9d7637b7f70a0b4805cfa3c02213c42ebb48baa64020f6559221733c79b1291e')
 
 build() {
   cd "python-sdk-core-$pkgver"
+sed -i '/ssl_context\.minimum_version = ssl\.TLSVersion\.TLSv1_2/a\        ssl_context.load_default_certs()' ibm_cloud_sdk_core/utils.py
+# there seems to be an issue upstream with python requests, which requires us to set the default_certs manually. I've patched it here until either upstream requests or upstream ibm-cloud-sdk-core resolves that. 
+# see https://github.com/psf/requests/issues/6730
   python setup.py build
 }