Add conditional OIDC role switching for Terraform plan and apply jobs

[sukeshreddyg]

A reference to the issue / Description of it

#8078

How does this PR fix the problem?

Ensures that each action uses the appropriate AWS role for security and compliance. Reduces duplication by keeping the workflow as a single job with conditional steps. Maintains clarity and efficiency in the workflow definition.

How has this been tested?

Please describe the tests that you ran and provide instructions to reproduce.

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Deployment Plan / Instructions

Will this deployment impact the platform and / or services on it?

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Checklist (check x in [ ] of list items)

• I have performed a self-review of my own code
• All checks have passed
• I have made corresponding changes to the documentation
• Plan and discussed how it should be deployed to PROD (If needed)

Additional comments (if any)

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[github-actions]

Trivy Scan Success

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</details> #### `Checkov Scan` Success
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CTFLint Scan Success

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Setting default tflint config...
Running tflint --init...
Installing "terraform" plugin...
Installed "terraform" (source: github.com/terraform-linters/tflint-ruleset-terraform, version: 0.9.1)
tflint will check the following folders:

Trivy Scan Success

Show Output

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Trivy will check the following folders:

[github-actions]

Trivy Scan Success

Show Output

```hcl

---

Trivy will check the following folders:

</details> #### `Checkov Scan` Success
<details><summary>Show Output</summary>

```hcl

*****************************

Checkov will check the following folders:

CTFLint Scan Success

Show Output

*****************************

Setting default tflint config...
Running tflint --init...
Installing "terraform" plugin...
Installed "terraform" (source: github.com/terraform-linters/tflint-ruleset-terraform, version: 0.9.1)
tflint will check the following folders:

Trivy Scan Success

Show Output

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Trivy will check the following folders:

[github-actions]

Trivy Scan Success

Show Output

```hcl

---

Trivy will check the following folders:

</details> #### `Checkov Scan` Success
<details><summary>Show Output</summary>

```hcl

*****************************

Checkov will check the following folders:

CTFLint Scan Success

Show Output

*****************************

Setting default tflint config...
Running tflint --init...
Installing "terraform" plugin...
Installed "terraform" (source: github.com/terraform-linters/tflint-ruleset-terraform, version: 0.9.1)
tflint will check the following folders:

Trivy Scan Success

Show Output

*****************************

Trivy will check the following folders:

[github-actions]

Trivy Scan Success

Show Output

```hcl

---

Trivy will check the following folders:

</details> #### `Checkov Scan` Success
<details><summary>Show Output</summary>

```hcl

*****************************

Checkov will check the following folders:

CTFLint Scan Success

Show Output

*****************************

Setting default tflint config...
Running tflint --init...
Installing "terraform" plugin...
Installed "terraform" (source: github.com/terraform-linters/tflint-ruleset-terraform, version: 0.9.1)
tflint will check the following folders:

Trivy Scan Success

Show Output

*****************************

Trivy will check the following folders: