In labs, replace wget with curl, as wget isn't available OOTB in common linux flavours

**Description**: As wget isn't present OOTB in linux flavours like RHEL, when lab1 first command is executed (wget https://kubevirt.io/labs/manifests/vm.yaml), got error "wget: command not found". Also wget is used in lab2 as detailed in Additional context section below. **What you expected**: Download to work always. So, as curl is more standardly available across linux flavours than wget, replace wget with curl across all labs. **URL**: 1. https://kubevirt.io/labs/kubernetes/lab1.html 2. https://kubevirt.io/labs/kubernetes/lab2.html **Additional context**: In lab2 also, I see usage of wget at places along with curl usage: ex: > Let’s create a Virtual Machine making use of it. Review the file vm1_pvc.yml. > ``` > Copy > wget https://kubevirt.io/labs/manifests/vm1_pvc.yml > ``` My OS details, where wget isn't present: > [root@vm1 ~]# cat /etc/os-release > NAME="Red Hat Enterprise Linux" > VERSION="9.4 (Plow)" > ID="rhel" > ID_LIKE="fedora" > VERSION_ID="9.4" > PLATFORM_ID="platform:el9" > PRETTY_NAME="Red Hat Enterprise Linux 9.4 (Plow)" > ANSI_COLOR="0;31" > LOGO="fedora-logo-icon" > CPE_NAME="cpe:/o:redhat:enterprise_linux:9::baseos" > HOME_URL="https://www.redhat.com/" > DOCUMENTATION_URL="https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/9" > BUG_REPORT_URL="https://bugzilla.redhat.com/" > > REDHAT_BUGZILLA_PRODUCT="Red Hat Enterprise Linux 9" > REDHAT_BUGZILLA_PRODUCT_VERSION=9.4 > REDHAT_SUPPORT_PRODUCT="Red Hat Enterprise Linux" > REDHAT_SUPPORT_PRODUCT_VERSION="9.4" > [root@vmx1 ~]#