forgejo-release.sh: Improve support for different Linux bases

Currently if you run this action and aren't using a Debian based runner
you need to install all tools ahead of time or the Action fails.

This should improve the behaviour so that it will attempt to install all
dependencies on a best effort basis.

forgejo-release.sh

@@ -26,11 +26,29 @@ TAG_URL=$(echo "$TAG" | sed 's/\//%2F/g')
 
 export GNUPGHOME
 
+get_arch() {
+    local arch
+    arch="$(uname -m)"
+
+    case "$arch" in
+        x86_64)   arch="amd64" ;;
+        i386|i686) arch="i386" ;;
+        aarch64)  arch="arm64" ;;
+        armv7l)   arch="armhf" ;; # Debian uses armhf for hard-float 32-bit ARM
+        armv6l)   arch="armel" ;; # older 32-bit ARM
+        riscv64)  arch="riscv64" ;;
+        ppc64le)  arch="ppc64el" ;;
+        s390x)    arch="s390x" ;;
+        *) echo "Unknown architecture: $arch" >&2; return 1 ;;
+    esac
+    echo "$arch"
+}
+
 setup_tea() {
-    if which tea 2>/dev/null; then
-        TEA_BIN=$(which tea)
+    if command -v tea >/dev/null 2>&1; then
+        TEA_BIN=$(command -v tea)
     elif ! test -f $TEA_BIN; then
-        ARCH=$(dpkg --print-architecture)
+        ARCH=$(get_arch)
         curl -sL https://dl.gitea.io/tea/$TEA_VERSION/tea-$TEA_VERSION-linux-"$ARCH" >$TEA_BIN
         chmod +x $TEA_BIN
     fi
@@ -166,9 +184,26 @@ upload() {
 }
 
 setup_api() {
-    if ! which jq curl; then
-        apt-get -qq update
-        apt-get install -y -qq jq curl
+    # Check if jq and curl are available
+    if command -v jq >/dev/null 2>&1 && command -v curl >/dev/null 2>&1; then
+        return 0
+    fi
+
+    echo "jq and/or curl missing, attempting to install..." >&2
+
+    if command -v apt-get >/dev/null 2>&1; then
+        apt-get -qq update && apt-get install -y -qq jq curl
+    elif command -v dnf >/dev/null 2>&1; then
+        dnf -y install jq curl
+    elif command -v yum >/dev/null 2>&1; then
+        yum -y install jq curl
+    elif command -v apk >/dev/null 2>&1; then
+        apk add --no-cache jq curl
+    elif command -v zypper >/dev/null 2>&1; then
+        zypper --non-interactive install jq curl
+    else
+        echo "No supported package manager found. Please install jq and curl manually." >&2
+        return 1
     fi
 }