Overhauling issue templates

.github/ISSUE_TEMPLATE/config.yml

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+blank_issues_enabled: true
+contact_links:
+  - name: Question
+    url: https://github.com/NVIDIA/cuCollections/discussions
+    about: Check out our Discussions page to ask and answer questions. 

.github/ISSUE_TEMPLATE/feature_request.yml

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+name: Enhancement
+description: Suggest an idea to improve cuCollections
+title: '[ENHANCEMENT]: '
+labels: ['type: enhancement']
+body:
+  - type: textarea
+    id: description
+    attributes:
+      label: Is your feature request related to a problem? Please describe.
+      description: A clear and concise description of what the problem is, e.g., "I would like to be able to..."
+      placeholder: I would like an overload of `cuco::static_map::insert` that returns the success of each insertion. 
+    validations:
+      required: true
+  - type: textarea
+    id: proposed-solution
+    attributes:
+      label: Describe the solution you'd like
+      description: A clear and concise description of what you want to happen.
+      placeholder: |
+        Add a new overload of `insert` that takes an output iterator range assignable from `bool` that indicates the success of each insert.
+        Example API: 
+        template <typename InputIt, typename OutputIt>
+        void insert(InputIt first_input, InputIt last_input, OutputIt first_input, cudaStream_t stream = 0);
+    validations:
+      required: true
+  - type: textarea
+    id: alternatives
+    attributes:
+      label: Describe alternatives you've considered
+      description:
+        If applicable, please add a clear and concise description of any alternative solutions or features you've
+        considered.
+      placeholder: You can implement this yourself with the device-side API, but it would be more convenient as a bulk function.
+    validations:
+      required: false
+  - type: textarea
+    id: additional-context
+    attributes:
+      label: Additional context
+      description: Add any other context about the request here.
+      placeholder: This would be useful for sparse embedding tables in DL usecases. 
+    validations:
+      required: false

SECURITY.md

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+ ## Security
+
+NVIDIA is dedicated to the security and trust of our software products and services, including all source code repositories managed through our organization.
+
+If you need to report a security issue, please use the appropriate contact points outlined below. **Please do not report security vulnerabilities through GitHub.**
+
+## Reporting Potential Security Vulnerability in RAPIDS
+
+To report a potential security vulnerability in RAPIDS:
+- Web: [Security Vulnerability Submission Form](https://www.nvidia.com/object/submit-security-vulnerability.html)
+- E-Mail: psirt@nvidia.com
+- We encourage you to use the following PGP key for secure email communication: [NVIDIA public PGP Key for communication](https://www.nvidia.com/en-us/security/pgp-key)
+- Please include the following information:
+   	 - Product/Driver name and version/branch that contains the vulnerability