Update actions/cache action to v3 (prabirshrestha#1462)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/linux_neovim.yml

@@ -51,7 +51,7 @@ jobs:
         continue-on-error: ${{matrix.allow_failure}}
       - name: Cache gopls
         id: cache-gopls
-        uses: actions/cache@v2
+        uses: actions/cache@v3
         with:
           path: bin/gopls
           key: ${{ runner.os }}-${{ env.VIM_LSP_GO_VERSION }}-${{ env.VIM_LSP_GOPLS_VERSION }}-${{ env.VIM_LSP_GOPLS_CACHE_VER }}-gopls

.github/workflows/linux_vim.yml

@@ -49,7 +49,7 @@ jobs:
           chmod u+x ~/vim/bin/vim
       - name: Cache gopls
         id: cache-gopls
-        uses: actions/cache@v2
+        uses: actions/cache@v3
         with:
           path: bin/gopls
           key: ${{ runner.os }}-${{ env.VIM_LSP_GO_VERSION }}-${{ env.VIM_LSP_GOPLS_VERSION }}-${{ env.VIM_LSP_GOPLS_CACHE_VER }}-gopls

.github/workflows/mac_neovim.yml

@@ -53,7 +53,7 @@ jobs:
           ref: v1.5.5
       - name: Cache gopls
         id: cache-gopls
-        uses: actions/cache@v2
+        uses: actions/cache@v3
         with:
           path: bin/gopls
           key: ${{ runner.os }}-${{ env.VIM_LSP_GO_VERSION }}-${{ env.VIM_LSP_GOPLS_VERSION }}-${{ env.VIM_LSP_GOPLS_CACHE_VER }}-gopls

.github/workflows/mac_vim.yml

@@ -29,7 +29,7 @@ jobs:
           ref: v1.5.5
       - name: Cache gopls
         id: cache-gopls
-        uses: actions/cache@v2
+        uses: actions/cache@v3
         with:
           path: bin/gopls
           key: ${{ runner.os }}-${{ env.VIM_LSP_GO_VERSION }}-${{ env.VIM_LSP_GOPLS_VERSION }}-${{ env.VIM_LSP_GOPLS_CACHE_VER }}-gopls

.github/workflows/windows_neovim.yml

@@ -50,7 +50,7 @@ jobs:
         continue-on-error: ${{matrix.allow_failure}}
       - name: Cache gopls
         id: cache-gopls
-        uses: actions/cache@v2
+        uses: actions/cache@v3
         with:
           path: bin/gopls
           key: ${{ runner.os }}-${{ env.VIM_LSP_GO_VERSION }}-${{ env.VIM_LSP_GOPLS_VERSION }}-${{ env.VIM_LSP_GOPLS_CACHE_VER }}-gopls

.github/workflows/windows_vim.yml

@@ -52,7 +52,7 @@ jobs:
         run: Expand-Archive -Path vim.zip -DestinationPath $env:USERPROFILE
       - name: Cache gopls
         id: cache-gopls
-        uses: actions/cache@v2
+        uses: actions/cache@v3
         with:
           path: bin/gopls
           key: ${{ runner.os }}-${{ env.VIM_LSP_GO_VERSION }}-${{ env.VIM_LSP_GOPLS_VERSION }}-${{ env.VIM_LSP_GOPLS_CACHE_VER }}-gopls