update cosign action to 1.5.1 (#53)

Signed-off-by: Carlos Panato <ctadeu@gmail.com>

README.md

@@ -15,7 +15,7 @@ Add the following entry to your Github workflow YAML file:
 ```yaml
 uses: sigstore/cosign-installer@main
 with:
-  cosign-release: 'v1.4.1' # optional
+  cosign-release: 'v1.5.1' # optional
 ```
 
 Example using a pinned version:
@@ -33,7 +33,7 @@ jobs:
       - name: Install Cosign
         uses: sigstore/cosign-installer@main
         with:
-          cosign-release: 'v1.4.1'
+          cosign-release: 'v1.5.1'
       - name: Check install!
         run: cosign version
 ```

action.yml

@@ -10,7 +10,7 @@ inputs:
   cosign-release:
     description: 'cosign release version to be installed'
     required: false
-    default: 'v1.5.0'
+    default: 'v1.5.1'
   install-dir:
     description: 'Where to install the cosign binary'
     required: false
@@ -32,7 +32,7 @@ runs:
           alias log_error="echo \"ERROR:\""
         fi
         set -e
-        
+
         mkdir -p ${{ inputs.install-dir }}
 
         if [[ ${{ inputs.cosign-release }} == "main" ]]; then
@@ -61,13 +61,13 @@ runs:
           esac
         }
 
-        bootstrap_version='v1.5.0'    
-        bootstrap_linux_amd64_sha='5bf1aa3ff4bd129c478e16e0b83febf3cc1b91b9daed60be31e8c6614a99b021'
-        bootstrap_linux_arm_sha='a06c932b9bcc0acce550603ced321f65484785d6d8d99aca344a59ed85d51647'
-        bootstrap_linux_arm64_sha='0027169db9929f22a6751255828b62d024526dd9821f64e4d94404ba7a225586'
-        bootstrap_darwin_amd64_sha='315fdddcfb3052f1b1b3f3f756bdcc05c8d740d8ac1e2cf57db38b1ada421a3b'
-        bootstrap_darwin_arm64_sha='5552e39f36e27241db0816f65bc37a9b141f4d973c42686da706a4d161cf81e1'
-        bootstrap_windows_amd64_sha='cdd2717287bf258ff8bfa51d938981d9ffd4eeb3341575f795634c0c41b556c4'
+        bootstrap_version='v1.5.1'
+        bootstrap_linux_amd64_sha='d1c9d4b5e21511c323c0dfa9123966e1d8b606ee5b939819f8785af8ff7d67b6'
+        bootstrap_linux_arm_sha='6f6cf3ca5c396152de6798b11f1febb3b8c87fd38c79b0dd2710794f63e00cc2'
+        bootstrap_linux_arm64_sha='8dd2f17f38a39b653e0880247dce6485204f6edfa2b6c2579cf1bfa1c7315a29'
+        bootstrap_darwin_amd64_sha='437219d97cf30543bd7522b87c57b37151368756196799aaa6bdca401b69386d'
+        bootstrap_darwin_arm64_sha='7425667fc587aae39bdc1347b669def4cf9659ee74e270cb8426f603ffeb42b1'
+        bootstrap_windows_amd64_sha='f8098071d1ae320fc2ee430e80df318e5f6e37c1a4717119c0589d573792e62c'
 
         trap "popd >/dev/null" EXIT
 
@@ -86,7 +86,7 @@ runs:
                   desired_cosign_v060_signature='cosign_linux_amd64_0.6.0_linux_amd64.sig'
                 fi
                 ;;
-              
+
               ARM)
                 bootstrap_filename='cosign-linux-arm'
                 bootstrap_sha=${bootstrap_linux_arm_sha}
@@ -96,7 +96,7 @@ runs:
                   exit 1
                 fi
                 ;;
-              
+
               ARM64)
                 bootstrap_filename='cosign-linux-arm64'
                 bootstrap_sha=${bootstrap_linux_arm64_sha}
@@ -106,14 +106,14 @@ runs:
                   exit 1
                 fi
                 ;;
-              
+
               *)
                 log_error "unsupported architecture $arch"
                 exit 1
                 ;;
             esac
             ;;
-          
+
           macOS)
             case ${{ runner.arch }} in
               X64)
@@ -126,7 +126,7 @@ runs:
                   desired_cosign_v060_signature='cosign_darwin_amd64_0.6.0_darwin_amd64.sig'
                 fi
                 ;;
-              
+
               ARM64)
                 bootstrap_filename='cosign-darwin-arm64'
                 bootstrap_sha=${bootstrap_darwin_arm64_sha}
@@ -137,7 +137,7 @@ runs:
                   desired_cosign_v060_signature='cosign_darwin_arm64_0.6.0_darwin_arm64.sig'
                 fi
                 ;;
-              
+
               *)
                 log_error "unsupported architecture $arch"
                 exit 1