build(deps): bump cryptography to 50.0.1 in requirements

 Updates the cryptography dependency to version 50.0.1 across multiple examples to resolve Dependabot alerts.

 Note: The dataflow/flex-templates example was excluded from this update because released versions of apache-beam (up to 2.76.0) restrict cryptography to <49.0.0. This can be updated once the
 pending apache-beam release that supports cryptography <51.0.0 is published.

Author: XrossFox

compute/encryption/requirements.txt

@@ -1,4 +1,4 @@
-cryptography==48.0.1
+cryptography==50.0.1
 requests==2.34.2
 google-api-python-client==2.131.0
 google-auth==2.38.0

iap/requirements.txt

@@ -1,4 +1,4 @@
-cryptography==48.0.1
+cryptography==50.0.1
 Flask==3.1.3; python_version >= '3.9'
 google-auth==2.38.0
 gunicorn==23.0.0

kms/attestations/requirements.txt

@@ -1,4 +1,4 @@
-cryptography==48.0.1
+cryptography==50.0.1
 pem==23.1.0; python_version < '3.8'
 pem==23.1.0; python_version > '3.7'
 requests==2.34.2

kms/snippets/requirements.txt

@@ -1,4 +1,4 @@
 google-cloud-kms==3.11.0
-cryptography==48.0.1
+cryptography==50.0.1
 crcmod==1.7
 jwcrypto==1.5.8

media_cdn/requirements.txt

@@ -1,2 +1,2 @@
 six==1.16.0
-cryptography==48.0.1
+cryptography==50.0.1

privateca/snippets/requirements-test.txt

@@ -1,4 +1,4 @@
 pytest==9.0.3
 google-auth==2.38.0
-cryptography==48.0.1
+cryptography==50.0.1
 backoff==2.2.1